Fragments like those now called Okazaki fragments might have been hypothesized even before they were discovered by Reiji Okazaki because
a. DNA replicates in the 3´-to-5´ direction.
b. single-stranded DNA was appearing behind DNA polymerase.
c. DNA nucleotides were being added to the 5´ end of the primer on the lagging strand.
d. RNA primase places short RNA primer sequences along the DNA molecule.
e. DNA polymerase I can connect short segments.
Answers
The correct option is (b). Fragments like those now called Okazaki fragments might have been hypothesized even before they were discovered by Reiji Okazaki because single-stranded DNA was appearing behind DNA polymerase.
The replication of DNA occurs in the 5´to 3´ direction. The leading strand is synthesized continuously, while the lagging strand is synthesized in a discontinuous manner with the help of RNA primase. DNA synthesis is made up of short, newly synthesized DNA fragments called Okazaki fragments, which were hypothesized before being discovered by Reiji Okazaki because single-stranded DNA was appearing behind DNA polymerase.The replication of the lagging strand occurs in the following manner. A series of RNA primers are laid down by RNA primase. DNA polymerase synthesizes the fragments, known as Okazaki fragments, in the 5´ to 3´ direction, using each RNA primer as a starting point. After the fragments are created, DNA polymerase I remove the RNA primers and replace them with DNA nucleotides. Finally, DNA ligase connects the new fragments to the preceding ones.Lagging strand replication in prokaryotes is similar to that in eukaryotes. The only difference is that DNA ligase is not required to form the phosphodiester bond between adjacent nucleotides since RNA primers are not needed to initiate synthesis. DNA replication is semi-conservative in both prokaryotes and eukaryotes.To learn more about Okazaki fragments Please visit:
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Related Questions
Which of the following statements is correct about these amino acids?
Answers
Answer:
C
Explanation:
something needs to be polar to diffuse through the plasma membrane, which the first aa is on the outside
Please help It is making me cry
Answers
Answer:
What are you supossed to be doing
Explanation:
Answer:
Can you give me the answers?
Explanation:
Which of the following is responsible for the cohesive property of water?
Hydrogen bonds between water molecules and other types of molecules
Hydrogen bonds between the oxygen atom of one water molecule and the hydrogen atoms of another water molecule
Hydrogen bonds between two oxygen atoms of adjacent water molecules
Covalent bonds between the hydrogen atoms of one water and the oxygen atoms of another water molecule.
Answers
Answer:
Cohesion: Hydrogen Bonds Make Water Sticky
Hydrogen bonds are attractions of electrostatic force caused by the difference in charge between slightly positive hydrogen ions and other, slightly negative ions.
What is the differences between gmo and transgenic cell?
Answers
Answer:
Differences between GMO and the Transgenic cell is given below:-
Explanation:
Genetically modified organisms (GMOs):-
Genetically modified organisms ( GMOs) are those species that used genetic engineering techniques to change their genomes. We have novel gene configurations which do not occur throughout the species' genetic variability. This may require the addition of genes or the silencing of the. GMO genes.Transgenic cell:-
Transgenic organisms represent a particular example of GMOs. They are when genome modification includes the genetic material from another species. Like GloFish, marine anemones have genes inserted in them and are thus called transgenic.What organism did the father of genetics, gregor mendel, study?.
Answers
Answer:
Gregor Mendel, through his work on pea plants, discovered the fundamental laws of inheritance. He deduced that genes come in pairs and are inherited as distinct units, one from each parent.
The survival of a species depends on its ability to adapt to changes in the environment. A species must be capable of surviving and reproducing despite changes to food sources, climate, or threats from predators. Which statement correctly describes a way that mutations increase the likelihood that a species will survive in a changing environment?
Mutations are always passed on to subsequent generations of the species
Mutations lead to genetic variation
Mutations are the cause of disease in the species
Mutations are not harmful when they occur in somatic cells of a species
Answers
Answer:
Your answer is B) Mutations lead to genetic variation.
Think of it like this, when rays were first starting to develop, they probably started with only one kind, stingless. Somewhere down the line, the genes of the rays started to mutate and eventually, there were stingrays and stingless rays. Now at this point there are predators that frequently feast upon the rays, so which of the two rays are more likely to defend themselves, and get away to live long enough to reproduce and pass on their genes? The stingrays! The mutation that may have occurred millions of years ago, has determined which organisms were more fit for a changing environment.
The survival of the species depends on the resources available and environmental conditions. The species or organisms capable to adapt to the surrounding have higher chances of reproduction and survival.
The correct answer is:
Option B: Mutations lead to genetic variation
The organisms adapting to the surrounding will undergo an alteration in their genetic sequence, known as mutations. The mutations are heritable and lead to genetic variation.
The mutation leads to genetic variation as:
It leads to the introduction of new alleles in the gene pool.Sexual reproduction and random mating also contribute to genetic variation. The mutations are heritable, and thus can cause an increase in the frequency of the mutated allele in the gene pool.
Thus, the correct answer is that mutation leads to genetic variation.
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Hurry PLZ help will get 20 pts
Answers
Answer:
it definitely the last one
Wich organismo in this food web can be described as both primary and secondary consumer?
Answers
Answer:
Racoons
Explanation:
Because racoons eat both grass (producer) and mice (primary consumer).
prokaryotic cells have nulcleus
Answers
Answer:
not nucleus, only nucleoid
Answer:
Prokaryotic cells are surrounded by a plasma membrane, but they have no internal membrane-bound organelles within their cytoplasm. The absence of a nucleus and other membrane-bound organelles differentiates prokaryotes from another class of organisms called eukaryotes.
Explanation:
hope it helps, God bless!
you are interested in the response properties of individual neurons in the occipital lobe that you believe are involved in processing information about motion. what is the best neurophysiological technique to assess this hypothesis in a living animal
Answers
The best neurophysiological technique to assess this hypothesis in a living animal is : a. Single-cell recording.
What are some properties of the neurons?Neurons are the information messengers. They use electrical impulses and chemical signals to transmit information between different areas of brain and between brain and the rest of nervous system
Neurons are characterized by four main functional properties as following: a) electrical excitability b) secretion vesicular and peptide extruding channel dependent), c) molecular synthesis ( proteins), d) growth and plasticity.
Different types of neurons are: sensory, motor, and interneurons, and structurally-based neurons that are: unipolar, multipolar, bipolar, and pseudo-unipolar neurons.
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Note: The question given on the portal is incomplete. Here is the complete question.
Question: You are interested in a particular type of neuron in the occipital lobe that you believe is responsible for processing information about motion. What type of neurophysiological technique would best allow you to assess this hypothesis in a living animal?
a. Single-cell recording
b. Histology
c. Functional MRI
d. Golgi stain
e. Transcranial magnetic stimulation
Lab absorption and radiation by land and water report
Please I need the lab report I’m struggling with the graphs and stuff
Answers
Answer:
I don't have access to any specific lab reports. However, I can give you some general information about lab reports and how to analyze data from experiments on absorption and radiation by land and water.
A lab report typically includes an introduction, method, results, and conclusion sections. In the introduction, you should provide background information on the lab topic and state the experiment's purpose and objectives. In the method section, you should describe the procedures used in the investigation. The results section should include any collected data, such as measurements or observations. It is common to present data in tables and figures (e.g., graphs) to make it easier to understand. Finally, the conclusion should summarize the main findings of the experiment and discuss any implications or applications of the results.
For the data you collected during your lab experiment on absorption and radiation by land and water, you can use graphs to show how the data is distributed and how it changes over time. For example, you could use a line graph to show how the amount of radiation absorbed by different materials (e.g., land, water) changes over time. You could also use a bar graph to compare the average radiation absorbed by various materials at different times of the day.
It is also essential to include a statistical analysis of the data, such as calculating your data's mean, median, standard deviation, and variance. This will help you understand your data's distribution and identify any outliers or patterns in the data that may not be immediately obvious from visual inspection alone.
I hope this information is helpful. If you have any specific questions about your lab report, please let me know, and I will do my best to assist you.
Explanation:
Tim's manager has asked him to outsource several customers service jobs at the company where he works. Where will Tim find these outsourced people to fill the customer service positions?
(A) From other countries.
(B) Within the company where Tim works.
(C) At the competing company across the street.
(D) In his friends and family circle.
Answers
Tim is going to have to find the people that would fill in the positions from other countries.
What is meant by outsourcing?Outsourcing is a business practice in which a company hires another company or individuals to perform tasks, services, or functions that are typically done in-house. The idea behind outsourcing is to reduce costs, increase efficiency, or tap into specialized expertise. Outsourced tasks may include customer service, manufacturing, accounting, IT support, or any other function that is not considered a core competency of the company.
Outsourcing can take place within a country or across international borders. The term "offshoring" is used specifically when outsourcing is done to a foreign country. The use of outsourcing has become increasingly common in recent years as companies look for ways to remain competitive in a rapidly changing global market.
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Tim's manager has asked him to outsource several customers service jobs at the company where he works therefore he will find these outsourced people to fill the customer service positions within the company where Tim works and is therefore denoted as option B.
What is Outsourcing?This is referred to as a business practice in which a company hires a third party to perform tasks, handle operations or provide services for the company.
Since he was told to outsource several customers service jobs at the company where he works the he just means him being in charge of handling their operations within the company where he works.
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5. In a rainforest, giant trees normally live for hundreds of
years. However, when they do die and fall to the ground,
hundreds of seedlings will compete to take its place. What
adaptation is most necessary for a young tree to mature in
this environment?
A. The ability to grow vertically at a rapid rate
B. The ability to establish a deep root system while
growing at a slow and steady rate
C. The ability to retain water to survive in drought
D. The ability to grow narrow, small leaves
Answers
Answer:
b
Explanation:
i think im right
River deltas are?
formed by deposition
created by seafloor spreading caused by the movement of tectonic plates
areas of infertile, rocky soil
Answers
They are formed by desposition
Which are characteristics of carbon? Check all that apply.
Answers
Explanation:
Terms in this set (5)
carbon is abundant, common.
forms strong covalent bonds.
has four valence electrons.
variety of shapes.
bonds with multiple elements
Answer:
- Covalent bonding
- Generally in non-electrolytes
- Low melting point
- Forms a variety of compounds
Explanation:
Edge 2021
Which of these digestive chemicals
does the stomach use to break down
food?
A. Hydrochloric acid
B. Escherichia coli
C. Staphylococcus aureus
D. Streptococcus pyogenes
Answers
Explanation:
digestive chemicals the stomach use to break down food is -
A. Hydrochloric acid
1.
In which order is energy transferred through a food chain?
A. Sun → plants → animals
B. Sun animals → plants
C. plants - Sun animals
nlants animals - Sun
D
Answers
Answer:
It is A
since the energy source is the first thing you need to make the planet habitable, and in order for the animals to live, you need plants like trees to give air. so the cycle is Sun-Plant-Animal
Please help would mean a lot tried looking up the answer but I have to pay to get answers.
Answers
mRNA?
Endoplasmic Reticulum?
Codons
Amino
Protein
Which experiment would most likely contain experimental bias?
A.
A student tests the attraction of bees to flowers by placing four different flowers in the same location and counting how many bees visit each.
B.
A chemistry class performs an experiment in which each reaction has the same amount of starting material and begins at the same temperature.
C.
A lab performs a test by giving bacterial colonies the same amount of different antibiotics and growing them under the same conditions.
D.
A company that makes pain relief medication tests the effectiveness of their own medicine compared to that of three other brands.
Answers
The experiment which would most likely contain experimental bias is a company that makes pain relief medication tests the effectiveness of their own medicine compared to that of three other brands which is therefore denoted as option D.
What is an Experiment?This is referred to as a procedure which is usually carried out in the laboratory and it is used to support or refute a hypothesis.
Experimental bias on the other hand is the tendency of a scientist or researcher to introduce bias into an experiment through unconsciously affecting the results, data etc. This is because they would want to get values which would show that their drugs are more effective and suitable for use so as to promote more sales and is the reason why some form of bias may be introduced into the findings which was why it was chosen as the correct choice.
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Which glands secrete a fluid that neutralizes acidity in the surroundings to help sperm survive?
Answers
Prostrate gland secrete a fluid that neutralizes acidity in the surroundings to help sperm survive.
The prostate gland assumes a significant part in male proliferation. It secretes compounds, lipids, amines and metal particles fundamental for the typical capability of spermatozoa. Improvement, separation, neutralization of acidity and upkeep of the prostate organ rely upon steroid and peptide chemicals. Close to the chemicals development factors additionally control the prostate organ. This audit will zero in on the design, capabilities and method of guideline of the prostate organ.
The prostate is both an embellishment organ of the male conceptive framework and a muscle-driven mechanical switch among pee and discharge. It is tracked down just in certain warm blooded animals.
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True or false: Buffers can neutralize acids, but they do. It affect bases.
Answers
passive transport or Active transport and , how do you know that is the type of transport shown?
Answers
Check your blood pressure: In a recent study, the Centers for Disease Control and Prevention reported that diastolic blood pressures of adult women in the United States are approximately normally distributed with mean 80.5 and standard deviation 9.6. (a) What proportion of women have blood pressures lower than 72? (b) What proportion of women have blood pressures between 70 and 92? (c) A diastolic blood pressure greater than 90 is classified as hypertension (high blood pressure). What proportion of women have hypertension? (d) Is it unusual for a woman to have a blood pressure lower than 68? Round the answers to four decimal places.
Answers
Blood pressure refers to the force exerted by circulating blood on the walls of blood vessels. The correct answers are:
(a) Approximately 0.1867 or 18.67% of women have blood pressures lower than 72.
(b) Approximately 0.0968 or 9.68% of women have blood pressures lower than 68.
(a) To find the proportion of women with blood pressures lower than 72, we need to calculate the area under the normal distribution curve to the left of 72. Using the mean (80.5) and standard deviation (9.6), we can standardize the value of 72.
Z = (X - μ) / σ
Z = (72 - 80.5) / 9.6 = -0.89
Using a standard normal distribution table or a calculator, we can find the corresponding proportion, which is approximately 0.1867.
Therefore, approximately 0.1867 or 18.67% of women have blood pressures lower than 72.
(b) To find the proportion of women with blood pressures between 70 and 92, we need to calculate the area under the normal distribution curve between these two values.
First, we standardize the values:
Z1 = (70 - 80.5) / 9.6 = -1.10
Z2 = (92 - 80.5) / 9.6 = 1.20
Using the standard normal distribution table or a calculator, we can find the area to the left of Z2 and subtract the area to the left of Z1 to find the proportion between these two values. The proportion is approximately 0.7837.
Therefore, approximately 0.7837 or 78.37% of women have blood pressures between 70 and 92.
(c) To find the proportion of women with hypertension (diastolic blood pressure greater than 90), we need to calculate the area under the normal distribution curve to the right of 90.
Standardizing the value:
Z = (90 - 80.5) / 9.6 = 0.99
Using the standard normal distribution table or a calculator, we can find the area to the right of Z, which is approximately 0.1611.
Therefore, approximately 0.1611 or 16.11% of women have hypertension.
(d) To determine if it is unusual for a woman to have a blood pressure lower than 68, we can calculate the proportion of women with blood pressures lower than 68 using the same method as in part (a).
Z = (68 - 80.5) / 9.6 = -1.30
Using the standard normal distribution table or a calculator, we can find the corresponding proportion, which is approximately 0.0968.
Therefore, approximately 0.0968 or 9.68% of women have blood pressures lower than 68.
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What is the normal/average pH level of lake in a healthy ecosystem?
Answers
Usually fresh water lakes have a pH range between 6.5 to 8.5, this is appropiate for many organisms life and development.
cervicohysterobisalpingo-oophorectomy this includes all of the listed parts below except one. which body part is not included in the description/definition/make up of this word?
Answers
"Cervicohysterobisalpingo-oophorectomy" is a medical term that refers to the surgical removal of the cervix, uterus, fallopian tubes, and ovaries. While this procedure involves the removal of several female reproductive organs, it does not include the vagina.
The cervix is the lower part of the uterus that connects to the vagina, while the uterus itself is the muscular organ where a fertilized egg implants and develops. The fallopian tubes are the structures that transport eggs from the ovaries to the uterus, while the ovaries are the organs that produce eggs for fertilization and hormones such as estrogen and progesterone.
A cervicohysterobisalpingo-oophorectomy is typically performed as a treatment for gynecological cancers or other conditions such as endometriosis or uterine fibroids. The procedure may be performed through an open incision in the abdomen or using minimally invasive techniques such as laparoscopy or robotic surgery. After the surgery, a woman will no longer be able to become pregnant and may experience symptoms of menopause if she has not already gone through it.
In summary, a cervicohysterobisalpingo-oophorectomy involves the removal of several female reproductive organs but does not include the vagina. The procedure may be performed for several medical reasons and may impact fertility and menopause symptoms.
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The special type of hemoglobin present in fetal red blood cells is ______.
A) hemoglobin F
B) hemoglobin B
C) hemoglobin A
D) hemoglobin S. A.
Answers
Hemoglobin: a protein found within red blood cells that transport oxygen from respiratory organs to the rest of the body.
Fetal hemoglobin, often referred to as Hemoglobin F, is present in red blood cells before birth. This type of hemoglobin is present in the mother's bloodstream and the blood cells carry oxygen to the baby's organs and tissues.
Therefore, option A is correct, Hemoglobin F
predict the molecular formula of a three carbon alkyne
Answers
The molecular formula of a three-carbon alkyne is C₃H₄.
An alkyne is a hydrocarbon compound that contains a triple bond between carbon atoms. The general formula for an alkyne is CₙH₂ₙ₋₂, where "n" represents the number of carbon atoms in the alkyne.
In the case of a three-carbon alkyne, "n" is equal to 3. Substituting this value into the general formula, we get C₃H₂₁₋₂. Simplifying the formula further, we have C₃H₄, which represents the molecular formula of a three-carbon alkyne.
The molecular formula provides information about the composition of a molecule by indicating the number of atoms of each element present. In the case of C₃H₄, it tells us that there are three carbon atoms (C₃) and four hydrogen atoms (H₄).
This arrangement allows for the formation of a triple bond between two of the carbon atoms, with the remaining carbon atom bonded to hydrogen atoms.
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What is the difference between Carbonia and Insularia Peppered moths?
Answers
Carbonia and Insularia Peppered moths are two distinct forms or subspecies of the peppered moth (Biston betularia). The main difference between these forms lies in their geographic distribution and coloration.
Carbonia Peppered Moth: Carbonia is a form of peppered moth that is predominantly found in industrial areas where pollution and soot are prevalent.
These moths have dark or melanic coloration, which provides them with camouflage against the darkened tree trunks that were common in industrialized regions. The dark coloration of Carbonia moths helped them evade predators and increased their survival rates in polluted environments.
Insularia Peppered Moth: Insularia is another form of peppered moth that is primarily found in non-polluted or rural areas.
These moths have lighter or speckled coloration, which allows them to blend in with lichen-covered tree trunks that are common in unpolluted habitats.
The light coloration of Insularia moths provided them with camouflage against their natural background, reducing predation risk.
The difference in coloration between Carbonia and Insularia Peppered moths is an example of industrial melanism, where moth populations adapted to their changing environment due to human industrial activities.
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Use the scenario to answer the question.
You observe the growth of a group of plants that have been tipped over.
How will auxin influence cell growth in the roots of these plants?
Auxin will build up on the lower side of the root and inhibit cell growth.
Auxin will build up on the lower side of the root and stimulate cell growth.
Auxin will build up on the upper side of the root and inhibit cell growth.
Auxin will build up on the upper side of the root and stimulate cell growth.
Answers
Auxin is responsible for the growth of cells in the roots of plants. Auxin build up on the lower side of the root which inhibit the cell growth. Auxins have an inhibitory effect on primary root growth. Thus, the correct option is A.
What is Auxin?Auxin is a plant growth hormone, which promotes cell growth and elongation of the plant. In cell elongation, auxin alters the plant wall plasticity making it easier for the plant to grow upwards. Auxin also influences the rooting in the plant.
Auxins have an impact on the growth of roots. Auxins facilitate the initiation of roots in plants. These hormones induce both growth of root branching (root initiation) and roots that are pre-existing. They also play important role in the formation of the adventitious root.
Therefore, the correct option is A.
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13 POINTS!!
What is the relationship between temperature and density? Explain how this
makes a hot air balloon fly and connect the design of your balloon to thermal
expansion. This is a 5 sentence paragraph!!
Answers
As temperature increases, density decreases. This is because the particles have more energy, and spread out, which causes the density to decrease. When the particles spread out, it can also lead to the object changing states. The same effect is seen when the temperature decreases. The particles slow down, have less energy, and go closer together. When the particles come together, it can also lead to an object changing states.
As temperature increases, density decreases. This allows a hot air balloon to fly because the air in the balloon is heated which makes the air in the balloon less dense then the air around the balloon. Less dense air goes up and denser air goes down so this is why the balloon fly. The design of the balloon is related to thermal energy because as the temperature rises the balloon expands.