Question

Which statement is true about crossing over of genes? a. crossing over does not occur between genes that are far apart from each other on a chromosome b. frequency of crossing over is related to the distance between linked genes. c. genes that are close to each other frequently cross over

Answer 1

The frequency of crossing over is related to the distance between linked genes on a chromosome, with genes farther apart having a higher chance of recombination.

Step-by-step explanation:

The frequency of crossing over is directly related to the distance between linked genes on a chromosome. If two genes are located close together, they are less likely to be separated by a crossover event during meiosis, and as a result are often inherited together. However, as the distance between two genes increases, the probability of crossovers between them also increases, which can lead to a higher frequency of recombination, making the genes behave more independently from one another.

Therefore, the correct statement about crossing over of genes is: b. Frequency of crossing over is related to the distance between linked genes. Genes that are far apart on a chromosome are more likely to be separated by a crossover event, leading to a higher recombination frequency and independent assortment behavior.

Answer 2

Answer;

c. genes that are close to each other frequently cross over

Explanation;

Crossing over is the exchange of genes between two chromosomes, resulting in non-identical chromatids that comprise the genetic material of gametes.

It therefore, creates new combinations of genes in the gametes that are not found in either parent, contributing to genetic diversity.