Question

State whether the following statement is true or false.
A haploid parent produces gametes by mitotic division. Justify your answer.

Answer 1

Gametogenesis is a cycle by which diploid or haploid precursor cells go through cell division and differentiation to form and develop haploid gametes. Germ cells produce gametes and are the main cells that can go through meiosis just as mitosis.

Complete Answer:
Haploids are those which contain just a half set of chromosomes than the usual complete ones. During the gametogenesis cycle, meiotic division happens yet it can differ as per the organism ploidy. Thus, contingent upon the natural life pattern of an alternate organism, gametogenesis happens by meiotic division of diploid gametocytes into different gametes, or by mitosis. For instance, plants produce gametes through mitosis in gametophytes.

In diploid living beings (polyploid), the sex gametes (sperm and eggs) are haploid. Organisms go through the most part of their time on earth in the diploid hereditary state and go through meiosis at the time of gametic creation. A gamete is a haploid cell that fuses with another haploid cell during fertilization. It is present in organisms which replicate by sexual reproduction. At the point when the two haploid gametes combine, they produce a diploid zygote, which isolates by mitosis to create countless diploid physical cells in the organism body.

In some algae and a few organisms like fungi, the cells of the multicellular grown-up body are haploid. This is the longest phase of the life cycle. Gametes are delivered by mitosis (not meiosis) and after fertilization, a diploid zygote is made. The single zygote cell can, at that point, divide by meiosis to create haploid cells again, which at that point delivers the primary grown-up body.

Mitosis keeps up the ploidy level, while meiosis decreases it. Hence, it is important for the haploid parent to deliver the gametes by mitotic division, to keep up the chromosome number in the gametes as well.

Note: The mitosis is otherwise called equational division as the quantity of chromosomes in the parent cell is equivalent to the number in the offspring cells.