Question

Which statement best explains the evolutionary advantage of meiosis?

• A. Meiosis is necessary for sexual reproduction.
• B. Genetic recombinations are possible from generation to generation.
• C. Meiosis alternates with mitosis from generation to generation.
• D. The same genetic system is passed on from generation to generation.

Answer 1

The correct option is B Genetic recombinations are possible from generation to generation.

Meiosis is a reductional division. The diploid parent gametes are reduced to the haploid offsprings. It involves the exchange of genes between homologous chromosomes. The homologous chromosomes pairs by crossover are known as synapsis and exchange the chromosomal segment which causes genetic recombination.These variations in the offsprings make organisms more adaptable to the environment and these have a definite role in evolution.

So, the correct answer is option B.