Question

With the help of labelled diagrams briefly explain a sexual reproduction in organism​

Answer 1

Sexual reproduction is the process in which gametes from two different sex combine together to form a new individual.

• The first stage of sexual reproduction is meiosis or gametogenesis. In this stage the diploid number (2n) of chromosomes reduced to a haploid number (n).

• In the next stage, the two gametes, both having haploid number (n) undergo fertilization and forms diploid zygote (2n) and the original number of chromosomes is restored.

• Then the diploid zygote undergoes mitosis and cell differentiation to form an embryo or offspring (2n).