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

Hint:
Meiosis may be a type of cell division in sexually reproducing organisms that reduce the number of chromosomes in gametes, the sex cells, or egg and sperm. In the human body, somatic cells are diploids that contain two sets of chromosomes from one parent.

Complete step by step solution:
Meiosis separates the pair of homologous chromosomes and reduces the diploid cell to a haploid. This is the type of cell division that creates egg and sperm cells. This means that it is divided into several stages that include prophase, metaphase, anaphase, and telophase. Cellular division occurs twice during meiosis. One starting cell can produce four gametes (eggs or sperm).
Cells undergo four stages in each round of division. They are prophase, metaphase, anaphase, and telophase. That means that whenever the purpose of meiosis is to produce gametes or sex cells,
During meiosis, four daughter cells are produced, each of which is a haploid that contains half as many chromosomes as the parent cell. Meiosis may be a type of cell division that reduces the number of chromosomes in the parent cell by half and produces four gamete cells.
The correct answer is genetic recombinations are possible from generation to generation

Option ‘B’ is correct

Note:
This process is required to supply egg and sperm cells for sexual reproduction. This means that the crossover process results in offspring having different combinations of genes from those of their parents and may occasionally produce new chimeric alleles. The shuffling of genes caused by genetic recombination produces increased genetic variation.