Question

what is the role of meiosis in gametogenesis

Answer 1

Meiosis is important in gamete production, which are required for sexual reproduction in organisms. Meiosis does not only produce gametes, but also brings variation in the offspring. These vaiations are basis of evolution. Thus, Meiosis plays an important role in evolution and diversity.

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Answer 2

Answer:

During the process of gametogenesis, a germ cell undergoes meiosis to produce haploid cells that directly develop into gametes. Hence, in animals, meiosis is an integral part of gametogenesis.

Explanation:

• Gametogenesis is the production of gametes from haploid precursor cells.
• In animals and higher plants, two morphologically distinct types of gametes are produced (male and female) via distinct differentiation programs.
• Animals produce a tissue that is dedicated to forming gametes, called the germline.
• Individual germ cells are called germ cells.
• In plants, some fungi and some algae, meiosis is temporally isolated from gametogenesis.
• Diploid cells undergo meiosis to produce haploid spores, resulting in a haploid generation called the "gametophyte."
• The latter cells sometimes develop into gametes in response to environmental or chemical stimuli.
• Many unicellular and simple multicellular eukaryotes produce gametes from haploid cells after meiosis, or shortly after meiosis in some species.
• Although of opposite mating types, gametes in fungi, multicellular algae, and some protists are usually not morphologically distinct and are designated (+) or (–) rather than an egg or sperm.

Hence, the role of meiosis in gametogenesis is vital.

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