Crossing over allows the reassortment of parental combinations of alleles.Group startsTrue or False

What is crossing over?Group of answer choicesalso referred to as the “independent assortment of chromosomes”the exchange of homologous portions of nonsister chromatidsmaking an RNA copy of a DNA stranda direct consequence of the separation of sister chromatidsthe movement of genetic material from one chromosome to a nonhomologous chromosomethe exchange of homologous portions of sister chromatidsNext

If crossing over occurs only between the two alleles of the same gene, as shown in the animation, what allele combinations are present in the gametes?Multiple Choiceone gamete with a parental combination of alleles, and three recombinant gametesfour gametes with parental combinations of allelesfour recombinant gametestwo gametes with parental combinations of alleles, and two recombinant gametes

The closer together two genes are on a chromosome, the less likely their alleles will be separated by crossing-over.

Use the animation and your knowledge of crossing over to select the true statement.Multiple ChoiceCrossing over occurs only in males.Crossing over occurs only between genes that are heterozygous.Crossing over results in reduced genetic variation among gametes.No answer is correct.Crossing over occurs only in some chromosomes.

Crossing over occurs during prophase I of meiosis.Group startsTrue or False