(*Its actually Physical Science)
Which kind of bond would occur between sodium (Na, Group IA) and chlorine (CI, Group VIIA)?
A. ionic
B. no bond
C. metallic
D. covalent
Answers
The type of bond that occur between sodium (Na, Group IA) and chlorine (CI, Group VIIA) is ionic. That is option A.
Ionic bond occurs when there is complete transfer of electrons from one atom to another in order to attain a noble gas electron configuration.
A typical example of an ionic compound is sodium chloride which is formed from sodium (Na, Group IA) and chlorine (CI,Group VIIA).
The halogens (which are Group VIIA) all have seven electrons in their outer shell. They gain an extra electron to form an ion with a single negative charge
While the alkali metals (Group IA) all have one electron in their outer shell. They lose this electron to form an ion with a single positive charge.
When complete transfer of electrons occurs, the sodium atom losses one atom to attain Neon atom configuration while the chlorine atom gains one atom from sodium to attain Argon atom configuration.
Therefore, the type of bond that occur between sodium (Na, Group IA) and chlorine (CI, Group VIIA) is ionic.
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Answer: ionic.
Explanation:
Related Questions
Why are senses necessary for behavior?
Answers
Answer: Senses are necessary for behavior because behavior is a response to an organism's environment. Without senses, the organism would be unable to sense anything in the environment to react to. Senses tell an organism what to avoid and what to interact with; they guide the organism's decisions. Even organisms with very simple senses have some way to detect changes in the environment that need to be reacted to.
3. Which of the following is a risk factor for depression?
(2 points)
A sense of hopefulness
A major life change
Never having experienced depression before
Having no relatives with mood disorders
Answers
It can be negative things like loss of employment, divorce but it can also be positive things like a new job or moving to another country.
I hope this helps :)
Answer:
major life change
Sometimes its hard to adapt to new life changes that your not happy with
Explanation:
major life change
What is the major reason cells cannot grow too large?
Answers
Answer:
the larger a cell becomes,the more demands the
cell place on its DNA.In addition,the cell has more trouble to moving enough nutrition and wastes across the cell membrane
Explanation:
hope it works
Describe the structure of a teeth with a well labelled diagram
Answers
The components of a tooth are pulp tissue, cementum, dentin, and enamel. The tooth root is located beneath the dental crown and is the portion of the tooth that is visible in the oral cavity.
What would you say about teeth?The crown and the root are the two anatomical components of a tooth. The top portion that is exposed and discernible above the gum is the crown (gingiva). Enamel covers it, safeguarding the dentine underneath.
What are the makeup and purpose of teeth?To chew food, people utilise their teeth, which are strong, mineral-rich structures. Instead of being comprised of bone like the rest of the skeleton, they have a special structure that allows them to digest food.
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Which element is a metal?
O A. Ne
O B. Xe
C. F
D. Mo
Answers
Answer:
D. Molybdenum
So a metal is: a class of elements characterized by physical properties that include shininess, malleability, ductility, and conductivity.
So what is molybdenum?
It has the atomic number 42 and is a silvery-gray transition metal. Although the free element is not found in nature, it has an extremely high melting point—the sixth highest of all known elements. It is mostly mined and manufactured for alloying, notably with steel.
Uses for molybdenum metal include:
An alloying agent gives quenched and tempered steels their hardenability and toughness. Additionally, it increases steels' strength at high temperatures (red-hardness). In nickel-based alloys (such Hastelloys) and stainless steels, it gives chemical solutions heat resistance and corrosion resistance. Electrodes for forehearths and glass furnaces that use electricity for heating. Uses for nuclear energy, such as in missile and aircraft parts (where high temperature resistance is vital).As a catalyst in the petroleum refining process. In electronic and electrical applications as a filament material.As a pillar of support for lightbulbs and radios.Electric connections that are arc resistant.Sheaths for thermocouplesCoatings for other metals that prevent corrosion and flames (generally arc deposited for metallising).Read the scenario.Joe, a reporter for Main Street News, covered a campaign rally for Jiya Patel, who is running for county commissioner. While at the rally, he interviewed the candidate and some audience members as his research for the article. He then wrote an article describing the rally, the candidate’s platform, and the reasons her supporters believe that she is the best person for this job. When he finished, he turned his article in to his editor. As the editor reviews this story, he sees a public report on campaign donations and learns that Joe has made a sizeable contribution to Patel’s campaign.What is the most ethical action for the editor to take?
Answers
Answer:
explain to the reporter that the newspaper cannot run the story because of perceived bias based on donations, so the article is being reassigned
Explanation:
Answer:
Explain to the reporter that the newspaper cannot run the story because of perceived bias based on donations, so the article is being reassigned
Explanation:
Correct on Edge 2022! Also, having a donation added means he already supports this, so writing a story about it isn't fair due to his previous bias.
Which of these is not a difference between insects and spiders? O Some insects eat plants, while all spiders are predators. O Insects have compound eyes, while spiders have multiple simple eyes called chelicerae. O Most insects have six legs, while spiders have eight legs. O An insect has three body regions, while a spider only has two.
Answers
The given options, "O Some insects eat plants, while all spiders are predators. O Insects have compound eyes, while spiders have multiple simple eyes called chelicerae.
O Most insects have six legs, while spiders have eight legs. O An insect has three body regions, while a spider only has two." all discuss the differences between insects and spiders. But the statement that is different e between insects and spiders is Some insects eat plants, while all spiders are predators. Insects are a class of invertebrates characterized by their body being divided into three segments: the head, thorax, and abdomen.
They usually have two pairs of wings, three pairs of legs, and compound eyes. Spider belongs to the class Arachnida, which is a subclass of Chelicerata, and it has a two-segmented body (cephalothorax and abdomen). It has eight legs, a pair of chelicerae or fangs, and two pairs of simple eyes. They are capable of producing silk that can be used to create webs or other structures. Some insects eat plants, while all spiders are predators - Incorrect. This statement is not a difference between insects and spiders. Insects have compound eyes, while spiders have multiple simple eyes called chelicerae. - Correct. Most insects have six legs, while spiders have eight legs. - Correct. An insect has three body regions, while a spider only has two. - Correct. Hence, the correct option is "Some insects eat plants, while all spiders are predators."
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which of the following is not a level of organization?
1)individual
2)population
3)community
4)ecosystem
5)ecology
Answers
Ecology is the study of relationships in their environment, so it cannot be a level of organization.
The diagram snows the parts or a nower.
Stigma.
Style.
Ovary.
Ovule
Anther
Filament
What is the name of the part labeled 2 in the diagram?
A. Stamen
B. Uterus
C. Carpel
D. Petal
2
Answers
The part of the plant that is shown in image 2 is the petal. Option D
What is a flower?We know that a flower is the reproductive part of the plant. This is the part of the plant that contains the anther and the stigma of the plant. As such, looking at the plant, we can see that the part of the plant that can be take part in the process of pollination is the flower of the plant.
Given the image of the plant as we can see it, it is clear that the labelled part of the plant that we can see in the image that has been labelled 2 is the petal.
Hence, the flower could be said to be the reproductive part of the plant.
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How many years will it take to triple the population of a city
that is growing exponentially at a relative rate of growth of 7%
annually?
(Accurate to the nearest year.)
How many yean wir it take to triple the poculation of a city that is growing exponentially at a relative rate of growth of \( 7 \% \) annually? (Acrurute fo the nearet pear)
Answers
To determine how long it will take to triple the population using the formula for exponential growth, we can start with the equation P(t) = P0e^(rt), where P0 is the initial population, P(t) is the population after time t, r is the relative rate of growth, and e is the mathematical constant approximately equal to 2.71828.
In this case, we want to find the value of t when P(t) is three times P0, which can be expressed as 3P0. So, we have the equation 3P0 = P0e^(rt).
By taking the natural logarithm (ln) of both sides of the equation, we get ln(3) = ln(e^(rt)).
Using the properties of logarithms, ln(e^(rt)) simplifies to rt ln(e), and ln(3) can be written as ln(3)/ln(e^(rt)).
Given that r = 0.07 (as given in the problem), we can calculate t as follows:
t = ln(3)/(0.07) ≈ 9.90 years ≈ 10 years (approximately).
Therefore, it will take approximately 10 years to triple the population.
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Why is a rhizoid not considered a true root? Rhizoids lack the capacity to anchor mosses into the substrate. Rhizoids are not capable of absorbing water. True roots have mycorrhizal fungi. Rhizoids lack xylem tissue. Only true roots are capable of nitrogen fixation.
Answers
Although rhizoids perform some functions that are similar to those of true roots, they are not considered to be true roots because they lack several of the specialized structures and functions that are necessary for roots to perform their essential roles in plant growth and development.
Although rhizoids perform some functions that are similar to those of true roots, they are not considered to be true roots for several reasons:
1. Rhizoids lack the capacity to anchor plants into the substrate: Unlike true roots, rhizoids are not able to provide strong anchorage to the plant. Rhizoids are relatively weak and do not penetrate the substrate deeply, making them less effective at supporting the plant's weight and resisting the forces of wind and water.
2. Rhizoids are not capable of absorbing water: True roots are responsible for the absorption of water and minerals from the soil. Rhizoids, on the other hand, do not have the specialized cells that are required for water absorption, such as root hairs.
3. Rhizoids lack xylem tissue: Xylem tissue is responsible for transporting water and nutrients from the roots to the rest of the plant. Rhizoids do not have xylem tissue, which means they are not capable of transporting water and nutrients in the same way that true roots can.
4. True roots have mycorrhizal fungi: Mycorrhizal fungi form a symbiotic relationship with the roots of most plants, helping them to absorb water and nutrients more efficiently. Rhizoids do not have this association with mycorrhizal fungi.
5. Only true roots are capable of nitrogen fixation: Some plants are able to fix nitrogen from the air with the help of specialized bacteria that live in the roots. Rhizoids, however, do not have this ability.
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a boundary formed when two plates move past each other
Answers
A transform boundary is created when two plates pass one another. The right choice from the available alternatives is option C.
When two tectonic plates of the Earth pass one another, it forms a transform boundary. Localized faults or fissures may form as a result of the two plates interacting with one another as they pass one another. The following is a basic explanation of a transform border, but they are more complicated than that.
Two more boundary types aside from transform boundaries are divergent borders and convergent borders. At convergent boundaries, tectonic plates contact with one another; at divergent boundaries, they separate from one another. A transform boundary is created when two plates pass one another.
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Correct Question:
A boundary formed when two plates move past each other
1. Ocean basin
2. Divergent boundary
3. Transform boundary
4. Convergent boundary
Three lines of evidence that provide support for common ancestry and evolution are Similar embryology, Molecular homologies, and The Fossil Record.
Provide at least one example for each line of evidence.
Answers
Answer:
What Is the Evidence for Evolution? Darwin used multiple lines of evidence to support his theory of evolution by natural selection -- fossil evidence, biogeographical evidence, and anatomical evidence. Comparative embryology is the study of the similarities and differences in the embryos of different species. Similarities in embryos are likely to be evidence of common ancestry. All vertebrate embryos, for example, have gill slits and tails. ... In humans, the tail is reduced to the tail bone.
Image result for Three lines of evidence that provide support for common ancestry and evolution are Similar embryology, Molecular homologies, and The Fossil Record.
Molecular similarities provide evidence for the shared ancestry of life. DNA sequence comparisons can show how different species are related. Biogeography, the study of the geographical distribution of organisms, provides information about how and when species may have evolved.
Answer:
what the other answer said!
Explanation:
The theory of evolution by natural selection means that what is changing over time?
Answers
Answer:
Ancient Organisms evolving into what we have now
Explanation:
The theory of evolution by natural selection, first formulated in Darwin's book "On the Origin of Species" in 1859, is the process by which organisms change over time as a result of changes in heritable physical or behavioral traits. Changes that allow an organism to better adapt to its environment will help it survive and have more offspring.
1
Cells do which of the following? (check all that apply)
A reproduce
B
take in nutrients
c get rid of wastes
D
use energy
Answers
Answer:
A can be right answer because reproduction is completely based on cells where as others r n{t primary function
All of the above options are functions carried out by cells including reproduction, nutrient absorption, excretion and energy utilization.
What are the functions of cell?Cells take in nutrients from meals, turn those nutrients into energy, and carry out specialized functions while doing so. They are responsible for providing structure for the body. Additionally, cells are capable of duplicating themselves and contain the hereditary material of the organism. There are numerous components that make up a cell, each of which has a specific purpose.
Cells must execute metabolic activities to survive, but some byproducts can be poisonous or fatal if they accumulate. Excretion removes cell wastes.
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It takes about [?] hours for food to be
ingested, digested, and leave the small
intestine.
A. 8
B. 1-2
C. 24
D. 5.
Answers
Answer:
A 6 to 8 hours. After you eat it takes about 6 to 8 hours for food to pass through your stomach and small intestine.
A cat with LONG HAIR (heterozygous) is a carrier of the short hair allele. Its mate has SHORT HAIR. Use a Punnett Square to determine the probability of their offspring having LONG HAIR.
Group of answer choices
25%
100%
0%
50%
75%
Answers
Answer:
50%
Explanation:
Hi there!
We are given the hair types of two cats
The first one has long hair, and it's heterozygous, meaning it has one dominant, and one recessive allele. We are given that it is a carrier of the short hair allele, meaning in its genotype, it has the short hair gene (that doesn't necessarily mean it's there in its phenotype). However, since it has long hair (genotype), that means that the long hair allele is dominant (the gene that will always show), and the short haired one is recessive (the gene that gets "covered up" by the dominant allele). Let's say the genotype of the long haired cat is Tt, where T is the long hair, and t is the short hair
The second cat has short hair, and as we have mentioned above, the allele for short hair is recessive, so the short haired cat has 2 copies of the short hair allele. Its genotype is tt
Please see below for the Punnett Square
Hope this helps! :)
As a solid, water floats. This means that Multiple Choice O solid water is less dense than liquid water O organisms in ponds, lakes, and reservoirs can survive under the ice cover O the hydrogen bond arrangement differs between ice and liquid water
Answers
As a solid, water floats. This means that solid water is less dense than liquid water, and organisms in ponds, lakes, and reservoirs can survive under the ice cover because the hydrogen bond arrangement differs between ice and liquid water. So the answer is all correct.
Hydrogen bond formation plays an important role in liquid water. When water molecules form hydrogen bonds with each other, water develops several unique chemical characteristics compared to other liquids. One is that when the temperature of the water drops and freezes, the water molecules form crystal structures held together by hydrogen bonds. This makes ice less dense than liquid water.
This is an anomaly when the ice density is low. This low density of ice causes ice to float on the surface of liquid water, much like ice cubes in a glass of water. In lakes and ponds, ice forms on the surface of the water creating an insulating barrier that protects the animal and plant life in the pond from freezing. Without this insulating layer of ice, the plants and animals that live in the pond would freeze in the solid block of ice and not survive.
From the explanation, the answer choices above are all correct.
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Which of the following indicates the correct order of the structures through which urine would pass during formation and excrition?
a. nephron, renal pelvis, ureter, bladder, urethra
b. renal pelvis, ureter, nephron, urethra, bladder
c. nephron, renal pelvis, urethra, bladder, ureter
d. renal pelvis, nephron, ureter, bladder, urethra
Answers
The correct order of the structures through which urine would pass during formation and excretion is the nephron, renal pelvis, ureter, bladder, and urethra. The correct answer is option a.
Excretion is the process by which living organisms eliminate waste products and excess materials from their bodies. In humans and many other animals, the excretory system is responsible for removing metabolic waste products such as urea, carbon dioxide, and excess water and electrolytes from the body.
Blood enters the kidneys through the renal arteries and is filtered by a network of tiny blood vessels called nephrons. It then flows into the renal pelvis. Once the urine is formed, it travels down the ureters and is stored in the bladder until it is ready to be excreted. The final step in the process is excretion, where urine is expelled from the body through the urethra.
Therefore option "a" is the correct answer.
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which two products are bromelain likely to produce when breaking down proteins
amino acids
fatty acid
monosaccharides
nucleic acid
polypeptides
disaccharides
Answers
The two specific products that bromelain produces when breaking down proteins are polypeptides and amino acids.
What are proteins?Proteins are a major group of biological macromolecules composed of a linear chain of aminoacids that are linked by means of peptide bonds.
Proteins are fundamental macromolecules present in all biological systems and they can be made by one or more polypeptides in order to form molecules that exhibit primary, secondary, tertiary, and quaternary structures.
These macromolecular structures can be evidenced by the tridimensional shapes that adopt different proteins, which can be globular or fibrous.
In conclusion, the two specific products that bromelain produces when breaking down proteins are polypeptides and amino acids.
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which anatomic structures project into the male pelvic outlet?
Answers
Answer:
The distance between the ischia bones is small in males, making the outlet narrow, but large in females, who have a relatively large outlet. The ischial spines and tuberosities are heavier and project farther into the pelvic cavity in males.
Explanation:
Answer:
ischial spines
coccyx
Explanation:
1. Complete a dichotomous key for the 10 leaves on the Common Leaves sheet. The chart provided here allows for 11 pairs of statements. Depending on how you build your dichotomous key, you may or may not need all of them, or you may need to add some.
Statement Types/Dichotomous key for leaves Identification Name/Number of Leaves
Statement 1a Click or tap here to enter text.
go to statement or identify leaf Click or tap here to enter text.
Statement 1b Click or tap here to enter text.
go to statement or identify leaf Click or tap here to enter text.
Answers
This dichotomous key should help you identify the leaves on the Common Leaves sheet by asking a series of yes/no questions and directing you to the appropriate leaf based on your answers.
Sure! Here's a dichotomous key for the 10 leaves on the Common Leaves sheet:
1a. Leaves are needle-like or scale-like (go to Statement 2)
1b. Leaves are not needle-like or scale-like (go to Statement 3)
2a. Leaves are arranged in clusters (go to Statement 4)
2b. Leaves are not arranged in clusters (go to Statement 5)
3a. Leaves are broad and flat (go to Statement 6)
3b. Leaves are not broad and flat (go to Statement 7)
4a. Clusters of leaves have 2 needles (go to Leaf 1)
4b. Clusters of leaves have more than 2 needles (go to Leaf 2)
5a. Leaves are feathery and fern-like (go to Leaf 3)
5b. Leaves are not feathery and fern-like (go to Statement 8)
6a. Leaves are heart-shaped (go to Leaf 4)
6b. Leaves are not heart-shaped (go to Statement 9)
7a. Leaves have a sawtooth edge (go to Leaf 5)
7b. Leaves do not have a sawtooth edge (go to Statement 10)
8a. Leaves have rounded lobes (go to Leaf 6)
8b. Leaves do not have rounded lobes (go to Statement 11)
9a. Leaves have a waxy texture (go to Leaf 7)
9b. Leaves do not have a waxy texture (go to Leaf 8)
10a. Leaves have deeply cut lobes (go to Leaf 9)
10b. Leaves do not have deeply cut lobes (go to Leaf 10)
Leaf 1: White Pine
Leaf 2: Red Pine
Leaf 3: Maidenhair Fern
Leaf 4: Sweetgum
Leaf 5: Red Maple
Leaf 6: Sugar Maple
Leaf 7: Magnolia
Leaf 8: Dogwood
Leaf 9: Oak
Leaf 10: Ginkgo
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Name the epidermal layer that is found in thick skin, but is absent from thin skin.
Answers
Answer:
Explanation:
Thick skin is thicker due to it containing an extra layer in the epidermis, called the stratum lucidum. Thick skin actually has a thinner dermis layer than thin skin, but is still thicker due to the stratum lucidum layer present in the epidermis.
Carbon in the ocean originates from the atmosphere.
lease select the best answer from the choices provided
true or false
Answers
Answer:
true
Explanation:
Carbon in the ocean originates from the atmosphere; that is true as the carbon in the ocean's main source is the atmosphere, where carbon dioxide (CO2) dissolves into the surface waters of the ocean through a process called gas exchange.
What is the role of carbon ?Carbon is an essential element for life on Earth, and it cycles through various reservoirs such as the atmosphere, ocean, land, and biosphere, the ocean is a major carbon sink, meaning it stores large amounts of carbon. But carbon dioxide is a greenhouse gas that is naturally present in the atmosphere, and its concentration has increased significantly over the past century due to human activities such as burning fossil fuels that harm all living organisms.
As a result, carbon in the ocean comes from the atmosphere; this is true.
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What feature of cells is best demonstrated in the image? Cells are formed from other cells within the same tissue. B. All organisms are made up of a large number of cells. OC. All organisms have cells with different shapes and functions. OD. Cells are the basic units of structure and make up tissues. A. What feature of cells is best demonstrated in the image ? Cells are formed from other cells within the same tissue . B. All organisms are made up of a large number of cells . OC . All organisms have cells with different shapes and functions . OD . Cells are the basic units of structure and make up tissues . A.
Answers
Answer:
Cells are the basic units of structure and makeup of tissues.
Explanation:
Definition: "...a collection of ideas and conclusions from many different scientists over time that describes cells and how cells operate." - Study.com
Which metal is not magnetic, it floats, and has a reaction with NaOH?
Answers
Answer:
Alkali metals
How many different mutations in the CFTR gene that can cause cystic fibrosis have been identified?
Answers
More than 1,700 mutations have been identified in the CFTR gene. A CF patient has two modifications of the CFTR gene. These mutations can be homozygous, the same, or heterozygous, in different ways.
Cystic fibrosis (CF) is a genetic condition that affects the lungs and digestive system.
The inherited CF gene causes the body's epithelial cells to produce a defective protein called CFTR (cystic fibrosis transmembrane conductance regulator).
Epithelial cells are the cells that make up the sweat glands in the skin. These cells also line pathways in the lungs, liver, pancreas, digestive system, and reproductive system. Because there is interference, the glands responsible for the production of fluids such as mucus and sweat are disturbed.
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When you turn on a lamp, energy is transferred electricity into light and _____ energy stores ,which are dispersed into the surroundings. (what word completes the sentence)
Answers
Answer:
Heat or Thermal
Explanation:
Answer:
The right answer is "heat" or "thermal"
Explanation:
Electric lamps generate both light and heat. Heat energy is stored in thermal energy stores.
what is a dogs favorite food?
Answers
Answer:
Peanut Butter
Explanation:
It is irresistible to dogs
I hope this helped ;)
Answer: Down below
Explanation: My dog likes all of these
Peanut butter. A favorite treat of many canines
blocks of cheese
boiled chicken
small amounts of cat food (it is almost like sugar to them ) but don't give the dog too much
lunch meats
meat-flavored baby foods.
Baby carrots
Yogurt
Salmon
Pumpkin
Eggs.
restriction enzymes are useful in creating recombinant dna molecules because they
Answers
Restriction enzymes are useful in creating recombinant DNA molecules because they can recognize specific DNA sequences and cleave the DNA at these sites. This ability allows scientists to cut and paste DNA from different sources, creating new combinations of genetic material.
Restriction enzymes, also known as restriction endonucleases, are enzymes that play a crucial role in genetic engineering and the creation of recombinant DNA molecules. These enzymes are naturally found in bacteria and are used to protect the bacterial cell from foreign DNA, such as that from viruses.
Restriction enzymes recognize specific DNA sequences, known as recognition sites, and cleave the DNA at these sites. This ability to cut DNA at specific locations makes restriction enzymes invaluable in creating recombinant DNA molecules.
When combined with DNA ligase, which can join DNA fragments together, restriction enzymes allow scientists to cut and paste DNA from different sources, creating new combinations of genetic material. This technique is widely used in various fields, including biotechnology, medicine, and research, to study gene function, produce genetically modified organisms, and develop new treatments and therapies.
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Restriction enzymes are useful in creating recombinant DNA molecules because they can cut DNA molecules at specific locations, known as recognition sites. They are enzymes that cut DNA molecules into fragments at specific sites called restriction sites.
This is useful in recombinant DNA technology because restriction enzymes are used to cut DNA molecules from different organisms into small fragments. These fragments can then be joined together with other DNA molecules to create recombinant DNA molecules.
In addition to this, restriction enzymes are helpful in creating recombinant DNA molecules because they can be used to isolate specific genes from an organism's DNA.
This gene can then be inserted into the DNA of another organism, creating a recombinant DNA molecule with the desired gene.In conclusion, restriction enzymes are essential in recombinant DNA technology because they allow for the isolation and manipulation of specific genes. The restriction enzymes cleave the DNA molecules into smaller fragments and can be used to join different DNA molecules to create recombinant DNA molecules.
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