Answer:
Genes
Explanation:
2.Identify a locus or loci that show(s) a 100% association with fur colour.
Answer:
A locus that shows a 100% association with fur color is known as the "Fur color gene." The Fur color gene is the gene responsible for determining the color of an organism's fur, hair, or skin. Mutations in this gene can lead to variations in fur color. For example, in mice, the agouti gene is located on chromosome 2 and is responsible for determining the color of the mouse's fur. The presence of a dominant form of the agouti gene results in a yellow coat color, while the recessive form of the agouti gene produces a black coat color.
The order of the nucleotides in the DNA molecule determine the shape of the proteins made by the cell. The shape andchemical nature of a protein determines what job it can do within an organism. This is an example of which scientificcross-cutting concept?A) Structure and FunctionB) Scale, proportion, and quantityC) Energy and MatterD) Stability and Change
A crosscutting concept is one that has applications in different branches of science.
The ones we have in the answer options are the following:
• Structure and Function,, which says that the ,shape, of an object gives it certain, properties and functions.
• Scale, proportion, and quantity,, which refer to what is important when studying something can be affected by the scale of it, as well as to the proportional relationships between quantities when the scale changes.
• Energy and Matter,, regarding the tracking of changes and flow of energy and matter in a system.
• Stability and Change,, which tells us that every system has conditions that affect its stability, and these need to be considered.
In the question, they are talking about how the order of the nucleotides in the DNA determines the amino acids of a protein, and thus its shape and chemical properties, which determine the function that the protein has.
This means it refers to the cross-cutting concept of structure and function, so the right answer would be A.
What happens during telophase?
Answer:
During telophase, the chromosomes arrive at the cell poles, the mitotic spindle disassembles, and the vesicles that contain fragments of the original nuclear membrane assemble around the two sets of chromosomes. Phosphatases then dephosphorylate the lamins at each end of the cell.
Explanation:
The posterior auricular, temporal and zygomatic are all branches of which nerve?
The posterior auricular, temporal, and zygomatic branches are all branches of the facial nerve, specifically its foremost trunk referred to as the temporal department. The facial nerve (cranial nerve VII) is a complex nerve that innervates the muscular tissues of facial expression and incorporates sensory information from sure areas of the face.
The temporal department of the facial nerve offers an upward thrust to numerous branches that deliver diverse areas of the face. The posterior auricular branch provides motor innervation to the muscle mass in the back of the ear, such as the occipital belly of the occipitofrontalis muscle.
The temporal department materials motor innervation to the frontalis muscle and additionally includes sensory statistics from the temple location. The zygomatic branch innervates the muscle tissues around the attention, along with the orbicularis oculi, and includes sensory data from the cheekbone place.
These branches play a crucial position in controlling facial movements, along with raising the eyebrows, last the eyelids, and smiling. They also contribute to the feeling and comments from the areas they innervate. Understanding the branches of the facial nerve allows for diagnosing and managing numerous conditions affecting facial expression and sensory belief, in addition to performing surgical approaches inside the head and neck vicinity.
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Adaptative features of a matured fresh eggs of cat fish
A big, nutrient-rich yolk is a characteristic adaptation of a mature catfish egg. Like many other fish species, catfish also lay eggs that are frequently demersal, or sheltered in a nest or placed on a substrate.
The mature egg of fish is surrounded by an acellular coat conventionally called the chorion. In Carassius auratus, three main layers can be recognized at the electron microscopic level, and we have termed them ch1, ch2, and ch3 starting from the outer side to the inner side close to the egg plasma membrane.
Fish eggs immediately upon fertilization are spherical in shape with various components, including maternal mRNAs, numerous organelles, yolk inclusions, proteins, as well as lipid droplets and pigments intermingled in the egg cytoplasm (Lubzens et al., 2010).
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Q- Adaptive feature of a matured fresh egg of a catfish.
What would happen to an organism is
mitosis did not occur
Answer:
The organism would not grow.
If an organism were cut or burned, the damaged area would not heal.
The organism would not produce new cells.
Explanation:
Just did it on edge, June 17th 2022
In E . coli, which enzyme catalyzes the elongation of a new DNA strand in the 5'→ 3 ' direction? (A) primase (B) DNA ligase (C) DNA polymerase III (D) helicase
DNA polymerase III is the enzyme that catalyzes the elongation of a new DNA strand in the 5'→ 3 ' direction.
DNA replication is the primary method by which DNA polymerase creates new DNA. Maintaining and passing genetic information from one generation to the next is made possible because of this process. DNA polymerase replicates two DNA strands simultaneously while working in pairs. These enzymes supplement the developing DNA strand by adding deoxyribonucleotides to the 3′-OH group. By virtue of their polymerization activity, the DNA strand extends in a 5'–3' direction. Guanine pairs with cytosine, while adenine pairs with thymine. They require a primer for replication process.
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Which is the most likely reason that stem cell research is controversial?
Stem cell research could lead to the development of human clones.
Many people assume that all human stem cells come from embryos.
Research by using stem cells results in high-priced treatments for disease.
Information that is obtained from stem cell research is considered unreliable.
Answer
Many people assume that all human stem cells come from embryos.
Explanation:
Not all stem cells are embryonic stem cells. In fact, a lot of stem cell type procedures come from stem cells in bone marrow. The controversy behind embryonic stem cells is that they come from aborted babies, which many don't agree with.
Answer:
B
Explanation:
What is the sum of the oxidation number of atoms in the compound CO2?
(a) 0
(b) -2
(c) -4
(d) +4
The oxidation number of carbon (C) in CO2 is +4. Hence, the correct answer is (d) +4, which represents the sum of the oxidation numbers in the compound CO2.
To determine the sum of the oxidation numbers in the compound CO2, we need to assign oxidation numbers to each element in the compound.
In CO2, oxygen (O) generally has an oxidation number of -2, as it tends to gain two electrons to achieve a stable octet. Let's assign the oxidation number of -2 to each oxygen atom:
Oxygen (O): -2
Since the overall compound is neutral, the sum of the oxidation numbers must equal zero.
Now, let's assign the oxidation number of carbon (C) as x:
Carbon (C): x
The sum of the oxidation numbers can be calculated as follows:
2(-2) + x = 0
Simplifying the equation:
-4 + x = 0
x = 4
Therefore, the oxidation number of carbon (C) in CO2 is +4.
Hence, the correct answer is (d) +4, which represents the sum of the oxidation numbers in the compound CO2.
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communities of similar organisms found in a particular climate are called ________.
Biomes are groups of related creatures that live in a certain climate.
Is an organism a living thing?As a result, organisms is the term used to describe living things. The cell's DNA, or genetic composition, controls how it acts. The nucleus, a membrane-bound structure found in some animal species called eukaryotes, contains the DNA.
What materials make up organisms?Cells, which are regarded as the basic building blocks of life, make up every living thing. Even one-celled creatures are sophisticated! Atoms create molecules, which create the cell organelles and components within each cell. Similar cells form tissues in multicellular organisms.
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3) Plants have developed many methods of seed dispersal. The table below shows seeds of two different
plants
Plant Mass of Seed (9) Seed Shape
Milkweed
0.00588
Dandelion
0.0026
How has the seed dispersal method developed by these plants given them a reproductive advantage?
A. The method ensures that offspring will be dispersed and reduces competition for resources.
B. The method reduces the chance that herbivores will consume the seeds.
C. The method lengthens the life cycle of each of these plants.
D. The method reduces the plants' need for water and other nutrients.
7D (S)
39
Answer:
B.The method ensures that offspring will be dispersed and reduces competition for resources.
Explanation:
20 POINTS!!!!!!!!!!!!!!
Answer:
Its a substitution mutation because one of the specific base, G is replaced by A.
This is a Point Mutation because Point mutation brings changes in the structure of a gene because of the substitutions with another base pair. Like in this case, G is substituted by A. In case of frameshift mutations, there is a change in the number of nucleotides due to either insertions or deletions of the nucleotides, which is not in this case.
Answer:
Its a substitution mutation because one of the specific base, G is replaced by A.
Explanation:
The secondary ossification center in a long bone is located in the:.
Answer:
epiphyses
Explanation:
Dr. paivio studies the ways in which the endocrine system and the nervous system are similar. which conclusion might he draw?
He might draw the conclusion that,
By releasing chemicals known as hormones and neurotransmitters, respectively, as a form of communication, the endocrine and neurological systems both regulate, coordinate, and integrate many physiological processes and bodily activities. A stimulus activates the neurological and endocrine systems, which then send messages and produce responses.
The endocrine and neurological systems are different:
Endocrine glands secrete hormones that act for a much longer period of time than the neurological system's ability to produce a neural response. Hormone action moves more slowly than neuronal response. A nerve or neural impulse may move through the body almost instantly and in a matter of seconds.
While the neurological system employs electrical impulses to transfer signals across neurons for signaling pathways, the endocrine system uses chemical signals or hormones to accomplish so. The neuronal reactions are transient and reversible, whereas the hormonal impulses are permanent.
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DNA ___________ is important because it ensures that when a cell divides, the two resulting cells have the same genetic code. Pleaseee help
Answer: Replication
Explanation: When the cell is preparing to divide it will replicate its DNA so that both of the daughter cells will have a complete set of the DNA. It's like a book of instructions and the cell has to perfectly replicate it so that when it splits into two both of the new cells will have a perfectly made copy of it! Hope this helps :)
Analyze the diagram below. Which term best describes the diagram?
A. ionic bond
B. covalent bond
C. Positive ion
Answer:
Covalent Bond
Explanation:
If you look for Cl on the periodic table, you'll see that it's a non-metal. Since there are 2 Cl, you have a covalent bond (two non-metals that share electrons).
A software algorithm is moving through a database transaction log and is applying the actions recorded in the log to the database in the same order in which those actions were originally performed. The algorithm is using the log file to perform a ________ operation.
The software algorithm is using the log file to perform a "replay" operation, where it applies the actions recorded in the log to the database in the same chronological order they were originally performed.
This helps to maintain data consistency and recover from errors or failures in the system. The algorithm you described is using the log file to perform a "rollback" operation. In this process, the software navigates through the database transaction log and applies the recorded actions in the same sequence as they were initially performed. Rollback operations are crucial for maintaining data integrity and ensuring consistency in case of system failures or errors.
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What is the significance of understanding differences within the species? 3-5 sentence
Answer:
When we understand the differences between species, it allows us to appreciate and understand the diveristy of life on earth while gaiining a deep knowledge of the evolutionary processes that shape it. Scienctists can also then better understand the genetic and enviornmental facts that contribute to these differences.
Lastly it can be important while considering conservation efforts. As it can help identify populations who need different needs, or species that adapt to a certian enviornemnt differently.
Why does the cell use active transport instead of diffusion to move sodium ions out of the cell?
Active transport is exemplified by the sodium-potassium pump, which uses energy to transfer the sodium and potassium ions against the concentration gradient during diffusion.
The main distinction between active transport and diffusion is that molecules moving by active transport must move against a concentration gradient, requiring cellular energy. Diffusion, in contrast, describes a passive transport technique in which molecules travel across the cell membrane along a concentration gradient.
Active transport is the best option for moving big (or many) particles and droplets of liquid, as well as when a cell has to transfer materials against a concentration gradient. Active transport demands energy, as the cell must spend ATP molecules. This is how it differs from passive transport.
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for each trait, how many alleles do the gametes carry?
For each trait, the gametes carry one allele.
During meiosis, chromosome pаirs аre split аpаrt аnd distributed into cells cаlled gаmetes. Eаch gаmete contаins а single copy of every chromosome, аnd eаch chromosome contаins one аllele for every gene. Therefore, eаch аllele for а given gene is pаckаged into а sepаrаte gаmete. For exаmple, а fly with the genotype Bb will produce two types of gаmetes: B аnd b. In compаrison, а fly with the genotype BB will only produce B gаmetes, аnd а fly with the genotype bb will only produce b gаmetes.
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If my cultures are suffering severely due to alkaloid production and accumulation in the medium. In that case, how can i overcome this problem?
Explanation:
Alkaloids are essentially natural compounds, and can mostly be used for pharmaceutical purposes. Natural habitats of different alkaloid plants have been destroyed for cultivated.
Many alkaloids are pharmacologically active and are useful as a message for several decades because a wide range of species, such as animals and bacteria, produce them.
Secondary and accumulating metabolites are related to different cell types such as epidermis endodermis pericycle phloem parenchyma, components, accompanying cells etc.
Page 1 Page 2 Radioactive decay involves the changing of a radioactive atom into another radioactive atom. For example, rocks and minerals may contain potassium-40 that changes into argon-40. Mass spectrometers measure the number of these atoms in a rock or mineral sample. This information and knowing the half-life of potassium-40 can help determine the age of rock layers. The half-life of potassium-40 is 1.3 billion years. The potassium-40 in rocks and minerals will decay through many half-lives until all of them change into argon-40. How many atoms will there most likely be at the third half-life of potassium-40 in this model? A model rock layer had 50 pennies (atoms of potassium-40). How old is the rock layer?
Answer:
13 and 1.3 billion years
Explanation:
Just got it right
Answer:
1. 13
2. 1.3 billion years old
Explanation:
good luck hope you get a 1000000
2. components of e. coli e. coli cells are rod-shaped, about 2 ?m long and 0.8 ?m in diameter. the volume of a cylinder is r 2h, where h is the height of the cylinder. (a) if the average density of e. coli (mostly water) is 1.1 3 103 g/l, what is the mass of a single cell? (b) e. coli has a protective cell envelope 10 nm thick. what percentage of the total volume of the bacterium does the cell envelope occupy? (c) e. coli is capable of growing and multiplying rapidly because it contains some 15,000 spherical ribosomes (diameter 18 nm), which carry out protein synthesis. what percentage of the cell volume do the ribosomes occupy? g
By applying the cylinder and sphere volume formula into E.coli components, it can be concluded that:
the mass of the cell is 1.1 x 10⁻¹² gramthe cell envelope occupies 94% of the total volumethe ribosomes occupy 4.56% of the cell volume.E.coli are rod-shaped or cylinder-shaped cells. E.coli has a protective cell envelope and is capable of growing and multiplying rapidly because it contains some spherical ribosomes.
The density of the cell can be calculated by dividing its mass by its volume.
Volume cylinder = πr²h
Volume sphere = 4/3πr³
Density = mass / volume
A. The mass of a single cell
First, we have to determine the volume with r = 0.4 μm = 4 x 10⁻⁵ cm, and h = 2 μm = 2 x 10⁻⁴ cm
v = πr²h
= 3.14 x (4 x 10⁻⁵cm)² x 2 x 10⁻⁴cm
= 100.48 x 10⁻¹⁴ cm³
≈ 1 x 10⁻¹² cm³
= 1 x 10⁻¹⁵ dm³
= 1 x 10⁻¹⁵ L
As we know the density and obtain the volume, we can calculate the mass as follows:
mass of a cell = density x volume
= 1.1 x 10³ x 1 x 10⁻¹⁵
= 1.1 x 10⁻¹² gram
B. Percentage of the total volume of the bacterium the cell envelope occupies
First, we determine the volume of a cell without envelope:
v = πr²h
= 3.14 x (0.4 - 0.01 μm)² x (2 - (2 x 0.01) μm)
= 3.14 x (0.39 μm)² x (2 - 0.02 μm)
= 3.14 x (0.39 μm)² x 1.98 μm
% of the total volume of the bacterium the cell envelope occupies:
= volume without envelope / volume with envelope x 100%
= (3.14 x (0.39 μm)² x 1.98 μm) / (3.14 x (0.4 μm)² x 2 μm) x 100%
= 0.301158 / 0.32 x 100%
= 94%
C. Percentage of the cell volume the ribosomes occupy
To determine the percentage, we have to determine the volume of all ribosomes:
Volume of all ribosomes = number of ribosomes x 4/3 x π x r³
= 15000 x 4/3 x π x (9 x 10⁻³ μm)³
= 20000 x 3.14 x 729 x 10⁻⁹μm³
= 14580000 x 3.14 x 10⁻⁹μm³
= 3.14 x 1.458 x 10⁻²μm³
% of the cell volume the ribosomes occupy:
= volume of all ribosomes / volume of cell x 100%
= (3.14 x 1.458 x 10⁻² μm) / (3.14 x (0.4 μm)² x 2 μm) x 100%
= (1.458 x 10⁻² μm) / (0.32) x 100%
= 4.56%
Thus, the mass of the cell is 1.1 x 10⁻¹² gram, the cell envelope occupies 94% of the total volume of the bacterium, and the ribosomes occupy 4.56% of the cell volume.
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It is not the number of different nucleotides, but the ________________ that is important in the ability of DNA to code for all the variability of organisms.
I'll mark brainlest
Answer:
discupa eu não sei
uma bela noite abençoe
What chemical properties of water determines what organisms live there?
Answer:
The concentration of dissolved oxygen in water plays an important role in determining the type and amount of organisms (fish, invertebrates, plants etc.) that live in a lake and is a good indicator of the lake’s overall health.
Explanation:
:)
Answer: Properties of water are high heat capacity and heat of vaporization, its ability to dissolve polar molecules, its cohesive and adhesive properties, and its dissociation into ions that lead to generating pH. Understanding what the properties of water helps the importance of maintaining life...
Hope this helps... stay safe and have a great day!!! :D
A dog paddles across a lake. What would happen to the dog if the hydrogen
ion pumps in its mitochondria stopped functioning?
A. The dog would gain a large amount of energy
B. The dog would not have any energy left for activity.
C. The dog would start using anaerobic respiration.
D. The dog would gain more energy from glycolysis.
Answer:
B. The dog would not have any energy left for activity
Explanation:
A dog paddles across a lake, and if the hydrogen ion pumps in its mitochondria stopped functioning, then the dog would not have any energy left for activity, which is present in option B.
What is the role of the mitochondria?When a dog paddles in a lake, it requires energy, and the mitochondria are considered the powerhouse of the cell as they produce ATP by creating the hydrogen ion gradient across the inner cell membrane of the mitochondria. If the hydrogen ion pump fails, ATP and energy are not produced, and the dog is unable to paddle in the lake. The energy is created due to the gradient, and later, the hydrogen ions enter the matrix through the ATP synthase.
Hence, A dog paddles across a lake, and if the hydrogen ion pumps in its mitochondria stopped functioning, then the dog would not have any energy left for activity, which is present in option B.
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6. What is causing the Earth to become imbalanced with carbon-based molecules.
Answer:
Human activities are causing imbalance of carbon based molecule.
Explanation:
It is the human intervention in the most unavoidable way that is affecting the environmental cycle and one of these cycle is the carbon cycle. Human activities such as burning of fossil fuels, excessive cutting of trees, rising green house effect, use of CFCs etc is hindering the environment process and hence causing imbalance on the earth.
method of improving Sandy soil
★Methods To improve Sandy Soil:
— Work in 3 to 4 inches of organic matter such as well-rotted manure or finished compost.
— Mulch around your plants with leaves, wood chips, bark, hay or straw.
— Mulch retains moisture and cools the soil.
— Add at least 2 inches of organic matter each year.Grow cover crops or green manures.
Answer:
Soil is easily made out of compost which makess the soil healthy
Explanation:
Which if the following is an example of a biotic factor?
A. Temperature
B. Humidity
C. Tree
D. Air
Answer:
C. Tree
Explanation:
Biotic factors are living organisms that shape their environment.
In order for medicine X to produce the effects that the researchers observed, it must have entered into which part of the targeted cells?
Golgi apparatus
nucleus
rough endoplasmic reticulum
ribosomes
Answer:
Nucleus
Explanation:
Answer:
In order for medicine X to produce the effects that the researchers observed, it would most likely need to enter the nucleus of the targeted cells. The nucleus is where genetic material, such as DNA, is stored and where gene expression is regulated. Depending on the specific mechanism of action of medicine X, it may need to interact with or affect gene expression in some way in order to produce its observed effects. While the other organelles listed (Golgi apparatus, rough endoplasmic reticulum, and ribosomes) are important for various cellular functions, they are less likely to be directly involved in the mechanism of action of a medicine.