Question

factors affecting crossing over​

Answer 1

Answer:

Factors affecting crossing over

High temperature and exposure to radiation rays such as x-rays increase the frequency of crossing over.

As the age advances the frequency of crossing over decreases.

Some mutation decreases the frequency.

Crossing over is less frequent near centromeres and the tips of the chromosomes.

Answer 2

Answer: FACTORS AFFECTING THE CROSSING OVER ARE -

1) Temperature- As the temperature increases the crossing over increases.

2) Age- As the age increases the linkage intensity also increases so the crossing over decreases.

3) Interference- The crossing of one cross over effects the crossing effect of the other alleles of the same chromosomes.

4) Distance- As the distance between the genes increases the crossing over factor also increase and therefore the linkage intensity decreases.

Explanation: