CELL DIVISION
THE CELL CYCLE
|
Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
|
|
|
It ensures variety in offspring
|
|
|
More sex cells
|
|
|
It insures there are less sperm cells
|
|
|
It makes sure there are more spindle fibers.
|
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: -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. Crossing over is evidence of a chromosome’s linear organization of connected genes.