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Mashcka [7]
3 years ago
14

A paleontologist has recovered a bit of tissue from the 400-year-old preserved skin of an extinct dodo bird. The researcher woul

d like to compare a specific region of the DNA from the sample with DNA from living birds. Which of the following would be most useful for increasing the amount of dod DNA available for testing?
a)RFLP analysis

b)electroporation

c)polymerase chain reaction (PCR)

d)gel electrophoresis

e) Southern blotting
Biology
1 answer:
slava [35]3 years ago
8 0

Answer:

c)polymerase chain reaction (PCR).

Explanation:

Because the paleontologist recovered only a bit of tissue  and it is very old, it is very likely that the DNA in the sample is very small and part of it is degraded. Anyway, the paleontologist must first amplify the DNA sample to obtain many identical copies of the specific region of the DNA they want to compare. the above is done through a polymerase chain reaction (PCR).

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How many stages are in meiosis ii?
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Suppose an animal is heterozygous AaBb, and the traits are not linked. When meiosis occurs, what is the total number of possible
GrogVix [38]

Answer:

4 possible combinations of gametes

Explanation:

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7 0
3 years ago
How does phloem differ from xylem?
Pani-rosa [81]

Phloem is the food conducting tissue that has a two-way flow.

Explanation:

Plants prepare food on their own and plants also have conductive cells that carry out transportation process. Plants are divided into two types based on their conductive system i.) vascular plants  ii.) non vascular plants.

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Phloem is the food conducting tissue that transports food to plant and also have bi-directional movement.

7 0
2 years ago
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