NEET BIOLOGY

Detailed explanation-1: -Parthenogenesis can occur without meiosis through mitotic oogenesis. This is called apomictic parthenogenesis. Mature egg cells are produced by mitotic divisions, and these cells directly develop into embryos. In flowering plants, cells of the gametophyte can undergo this process.

Detailed explanation-2: -Parthenogenesis is an adaptive strategy that allows organisms to reproduce when sexual reproduction is not possible due to environmental conditions. Parthenogenesis that happens by apomixis involves the replication of an egg by mitosis resulting in diploid cells that are clones of the parent.

Detailed explanation-3: -But in parthenogenesis, the body finds a unique way of filling in for the genes usually provided by sperm. Ovaries produce eggs through a complex process called meiosis, where the cells replicate, reorganize, and separate.

Detailed explanation-4: -parthenogenesis, a reproductive strategy that involves development of a female (rarely a male) gamete (sex cell) without fertilization. It occurs commonly among lower plants and invertebrate animals (particularly rotifers, aphids, ants, wasps, and bees) and rarely among higher vertebrates.

Detailed explanation-5: -Parthenogenesis is a form of asexual reproduction wherein the offspring develops from the egg or female gamete without the prior fertilization from the male gamete. Parthenogenesis is regarded as a form of asexual reproduction because a zygote develops without the union happening between female and male gametes.