How does random fertilization add to the genetic variation?
A)Nonsister chromatids exchange gene segments to produce new combinations of maternal and paternal genes.
B)Fusion of sperm and ovum, each having a unique combination of chromosomes, introduces further variation.
C)Homologous pairs of chromosomes sort into daughter cells independently of the other pairs.

Question

29-11-2015
Biology

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How does random fertilization add to the genetic variation?
A)Nonsister chromatids exchange gene segments to produce new combinations of maternal and paternal genes.
B)Fusion of sperm and ovum, each having a unique combination of chromosomes, introduces further variation.
C)Homologous pairs of chromosomes sort into daughter cells independently of the other pairs.

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W0lf93 W0lf93 · Answer 1 · 2017-05-14T18:28:44+02:00

Random fertilization adds to the genetic variation thanks to B)Fusion of sperm and ovum, each having a unique combination of chromosomes, introduces further variation. Fertilization is a process of fusion of sperm and ovum. In a random fertilization, it is expected that sperm and ovum each have a unique combination of chromosomes. Thus, the created zygote will have a unique combination of chromosomes which introduces variation.