Answer:
Extension
Explanation:
Polymerase chain reaction is given by Kary Mullis and it contains three steps denaturation, annealing, and extension. In denaturation, the temperature is raised to 96° c so that the DNA can denature.
In annealing, the temperature gets reduced to 55°c so that the primer can bind to the complementary sequence. In extension, Taq polymerase is used to extend the new strand.
This enzyme is isolated from thermophilic bacteria and the temperature here is raised to 72°c so that the enzyme can extend the primer and make the complementary strand. So the right answer is extension.
I think it is A
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Answer:
Answer: The Blue eye trait skipped a generation and so the girl got the trait with the two alleles (bb: for example)
Explanation:
1/2
For instance the two parents could be AB and AB
The possible combinations are: AA AB BA BB
2/4 of those are heterozygous, or 1/2.