Biology

Biology, 04.08.2019 08:00, palomaresmitchelle

How does random add to genetic variation ?

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Biology, 30.06.2019 11:00, ieshaking28

The human genome comprises about 3 x 109 base pairs of dna, and no two humans, other than identical twins, ever have been or will be genetically identical. between any two humans, the amount of genetic variation is about 0.1 percent. what conclusion would be most appropriate about the genetic variation between humans and the three apes as illustrated by the phylogenetic tree? a) genetic variation between all four organisms is non-existent. b) the genetic variation between all four organisms is about the same. c) the genetic variation between humans and orangutans is the greatest. d) humans branched off from the other three animals due to great genetic variations.

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Biology, 15.07.2019 15:00, cindyc1103

What would happen if there were no germ-line mutations or genetic recombination possible in a population? (2 points) genetic variation would have to come from random events. only alternate generations would express any genetic variation. body cell mutations would be the only source of heritable genetic variation. there would be no new heritable genetic variation possible in the population.

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Biology, 20.07.2019 05:30, sophiaa23

The process of meiosis increases genetic variation when genetic information is exchanged during crossing-over and when alleles are independently and randomly assorted into daughter cells. which of the following processes also contributes to genetic variation? a. genetic cloning b. cell specialization c. random fertilization d. mitotic divisions

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Biology, 04.08.2019 16:30, AutismRobotrix1999

Which of the following best compares the effects of genetic drift and gene flow on the genetic makeup of a population? they are both random processes, but genetic drift decreases genetic variation and gene flow increases it. they are both selective processes, but genetic drift increases genetic variation and gene flow decreases it. they both decrease genetic variation, but gene flow is random and genetic drift is not. they both increase genetic variation, but gene flow is selective and genetic drift is not.

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