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kap26 [50]
3 years ago
7

It is common to use ddNTPs (dideoxynucleoside triphosphates) for sequencing DNA because, when incorporated into a growing DNA po

lymer, the ddNTP acts as a chain terminator, allowing the researcher an opportunity to determine the last-added base to a given chain. From your knowledge of nucleotide structure and DNA synthesis, what is the most likely attribute of ddNTPs for DNA sequencing?
A. The ddNTPs lack a 5′ carbon.

B. The ddNTPs lack a 3′ hydroxyl group.

C. The ddNTPs lack a nitrogenous base.

D. The ddNTPs lack the sugar component.
Biology
1 answer:
Aliun [14]3 years ago
4 0

Answer:

B. The ddNTPs lack a 3′ hydroxyl group.

Explanation:

Dideoxynucleotides is a family of inhibitors of the DNA polymerase, its official name is 2',3' dideoxynucleotides but they are commonly called ddNTPs. One of the main characteristics of this compound is the absence of the 3'-hydroxyl group in the deoxyribose, due to the absence of this group, it is impossible to form a phosphodiester bond between nucleotides and the DNA synthesis is stopped.

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Why is it important for cells of multicellular organisms to undergo mitosis
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3 0
3 years ago
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43. Define carrying capacity.<br>​
shtirl [24]

Information: Carrying capacity is the amount of things that can be placed onto something else without damaging and/or breaking the other thing. An example would be an elevator. Elevators have a certain carrying capacity and only so many people can fit on it before the elevator will no longer be able to support all the weight.

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8 0
2 years ago
12. Recent developments have resulted in the ability to clone cats. Many people argue that cloning offers pet owners comfort in
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Cloning is a process of producing genetically identical organisms through the techniques of biotechnology. Reproductive cloning of animals involves the somatic cell nuclear transfer in which the nucleus from an adult donor cell is transferred to an egg cell from which the nucleus has been removed. It is then incorporated into the uterus of a surrogate animal.

Pet cloning is not acceptable because of the following reasons-

(1) Its a very expensive procces with a high rate of failure.

(2) The clones produced tend to develop health problems. Large Offspring Syndrome (LOS) with very large organs is observed showing problems with blood flow and breathing with respect to heart and lungs, renal failure and other complicated issues.

(3) The clones are susceptible to skeletal abnormalities, higher rates of infection and tumour development. This results in a high mortality (death) rates.

(4) Since a surrogate mother is involved in the process of cloning, they experience a lot of health problems while carrying the embryos and sometimes it can be even killed.

Thus, cloning of pets is not acceptable as it affects both the cloned animal and the surrogate mother which is not preferred. Instead, adopting a homeless pet will provide shelter to another animal with a better nourishment.

7 0
3 years ago
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pav-90 [236]

Answer:

d. alveolar ventilation rate

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3 years ago
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