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Molodets [167]
3 years ago
13

Which of the following proteins is vital to the process of recombination?

Biology
1 answer:
anyanavicka [17]3 years ago
6 0

Answer:

The correct answer will be option-A.

Explanation:

Recombination is a process in which the DNA sequences get exchanged between two homologous chromosomes. It occurs during gamete formation and is the basis of genetic diversity.

The process requires many enzymes, the key enzyme of which is Recobinase A or RecA protein which catalyzes the homologous recombination using ATP as an energy molecule.

RecA binds to the single-stranded DNA at the break site and forms pre-synaptic structure. Thus, it initiates the reaction of strand exchange and is the correct answer.

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As DNA replication begins the DNA molecule is broken apart into two ________ strands.
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The relative location of four genes on a chromosome can be mapped from the following data on crossover frequencies Genes B and D
kykrilka [37]

Answer:

3. CABD

Explanation:

The gene mapping refers to providing position to the genes on the chromosomes.  The first gene map was constructed by the Alfred Sturtevant on the basis of recombinant produces or recombination frequency which was calculated.

The gene mapping refers to providing position to the genes on the chromosomes.

In the given question to construct gene map:

1. Look for the highest recombination frequency that is 50% between the C and D.

2. Now look for second-highest value and place the gene accordingly.

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