Question

The organ which forms gametes in animals is
A. Kidney
B. Liver
C. Gonad
D. Oviduct

Answer 1

Hint: Via a kind of cell division called meiosis, reproductive cells are formed. A diploid parent cell with two copies of each chromosome undergoes one round of DNA replication during meiosis, followed by two independent nuclear division cycles to create four haploid cells. It occurs in testes.

Complete answer: The development and fusion of two kinds of gametes; sperms and eggs require sexual reproduction in animals. Usually, gametes are formed in two distinct gonads, two separate individuals are required. A male parent provides sperm, and an egg or ovum is donated by a female parent (plural, ova). For some of the male parent’s traits, the sperm provides coding genes, and the egg provides coding genes for some of the features of the female kin. Usually, the egg is large and non-motile, with a nutrient store that supports the embryo's development. Typically, the sperm is compact and motile and adapted to move by beating its long, flagellum-like whip. A zygote, or fertilized egg, is formed when the sperm and egg join. Linked to both parents, but not identical to either, the zygote evolves into a new species. Gonads (male testes and female ovaries) are responsible for the production of testosterone, estrogen, and progesterone steroid hormones.
Hence, option C is the correct answer.

Note: Before birth, oogenesis begins but is not completed until after puberty. A mature egg develops only after a sperm fertilizes a secondary oocyte. The primary oocyte, nestled in a small, immature follicle before puberty, remains in a resting state.