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.

B

Explanation:

The closer together that particular genes are to each other, the less likely that they will separate during crossing over and the more likely that they are inherited together by offspring – this is a test of linkage of genes. Genes on separate chromosomes are more likely to cross over than genes on the same chromosome.  

prophase: we can observe the chromosomes to coil up and condense. they become visible. nuclear membrane and envelope disintigrate.s

metaphase: chromosomes align at the center, the metaphase plate. spindle fibers attach to centromeres of the sister chromatids. they meet at kinetochores.

anaphase: sister chromatids are pulled towards each opposing centromere, set on different poles.

telophase: chromosomes are now clustered up only on either sides of the cell. nuclear membranes reform, and a new cell wall forms along the cell plate. this will lead to cytokinesis, the process that divides the cell membrane and forms the cell wall.

the answer is d.) homologous; have mammary glands