CELL STRUCTURES AND FUNCTION
CELL CYCLE
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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It ensures variety in offspring
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More sex cells
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It insures there are less sperm cells
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It makes sure there are more spindle fibers.
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Detailed explanation-1: -This process results in new combinations of alleles in the gametes (egg or sperm) formed, which ensures genomic variation in any offspring produced.
Detailed explanation-2: -Crossing-over increases genetic variation by creating different chromosomes in offspring in comparison with their parents. The amount of genetic variation in a population is important because natural selection is dependent upon varying alleles to increase or decrease their frequencies.
Detailed explanation-3: -Crossing over ensures the variation of offsprings and generates a genetic difference within the population. Recombination changes the genetic pool of organisms by changing the gene frequency which is an important step of evolution. New combinations of traits and new phenotypes are resulted through recombination.
Detailed explanation-4: -The exchange of chromosome material results in variation in the offspring. It plays a crucial function in the evolution process. The creation of genetic maps is aided by crossing over frequency.