Practice MCQ Questions and answers on Biology-GK

Answer: Option B

Meiosis is a type of cell division that reduces the number of chromosomes in the parent cell by half and produces four gamete cells. This process is required to produce egg and sperm cells for sexual reproduction.

Answer: Option B

In a process called microsporogenesis, four haploid microspores are produced from each diploid sporogenous cell (microsporocyte, pollen mother cell or meiocyte), after meiotic division. After the formation of the four microspores, which are contained by callose walls, the development of the pollen grain walls begins.

Answer: Option B

Synapsis (also called syndesis) is the pairing of two homologous chromosomes that occurs during meiosis.

Answer: Option B

In summary, meiosis is a form of cell division that results in half the normal number of chromosomes in sex cells, or gametes, thus maintaining the chromosome number of a species from generation to generation.

Answer: Option B

There are many differences between prokaryotic and eukaryotic cell division. Bacteria have a single, circular DNA chromosome and no nucleus. Therefore, mitosis is not necessary in bacterial cell division.