What would be the result if crossing over did not happen during meiosis in humans? a. there would be less genetic variation in humans. b. parents would be more likely to look like their children. c. the human population could not reproduce. d. children would have more chromosomes.

A.There would be less genetic variation in humans

Explanation:

During the process of crossing over chromosomes of a homologous pair exchange equal segments with each other. This results in new combinations of genes in the gametes that are not found in either parent, contributing to genetic diversity. Therefore, if this did not occur there would be less genetic variation in humans

the rocks are classified by the geological process they are formed by. the three main groups of rocks are igneous, metamorphic, and sedimentary. minerals are not they are classified under the chemical classes they are in. these groups include silicates, sulfates and carbonates.