Help with this biology question, please

Posted on 2015-10-16 06:09:00 in Biology by MARI

Diploid cells contain homologous chromosomes. While homologous chromosomes are very similar and contain the same loci, they are not identical. Which statement correctly explains why homologous chromosomes are not identical?

a.) The two members of a homologous pair originated from different parents/different individuals.

b.) The two members of a homologous pair exchange pieces of DNA through the process of crossing over

c.) The two members of a homologous pair are frequently mutated prior to synapsis.

d.) The two members of a homologous pair fuse together to create different combinations of DNA.

e,) The two members of a homologous pair tend to be copied incorrectly during S phase of interphase.

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