Answer:
No, all the gametes formed from a parent
organism do not have the same genetic composition .It can be better understand
with the help of the emanation given below Sexual reproduction in organisms
generally involves the fusion of gametes from two different individuals. These
gametes form by the process of gametogenesis. In the heterogametic species,
gametes are of two types namely male and female. Gametes are haploid though the
parent body from which they arise may be either haploid or diploid.
(a) A haploid parent like Monera, fungi,
algae and bryophytes produce gametes by mitotic division. The number of
chromosomes, i.e., the genetic composition remain same after such type of
division.
(b) The diploid parent like
pteridophytes, gymnosperms, angiosperms and most of the animals including human
beings produces gametes by meiosis. In such organisms(diploid), specialized
cells called meiocytes (gamete mother cell) undergo meiosis,At the end of meiosis
only one set of chromosomes gets incorporated into each gamete. It means the
gametes formed contain a haploid number of chromosomes in contrast to the
number of chromosomes in mother cells.
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