Question

When crossing over occurs, part of a chromatid on one chromosome breaks off and switches positions with the matching portion of a chromatid on the homologous chromosome. How does crossing over affect the possible genetic combinations in the offspring formed from these gametes?

Answer 1

Answer:

crossing over is the exchange of genetic material between human chromosomes. it result in New combination of genes on each chromosome .IT results in damage that had unique combination of chromosomes. in sexual reproduction to gamates unite to produce an offspring.