What would have happened if meiosis does not occur during the production of human sperm cell and egg cell?

Open in App

Solution

If meiosis would not have happened during the production of gametes in humans, both sperm and egg cells would have been diploid. Considering that it fertilisation still took place, zygote resulted had to be a tetraploid structure. This tetraploid zygote would have then undergone meiosis to form a diploid organism.

Suggest Corrections

Similar questions

Fill in the blanks
(a) Mitosis occurs in our ..... cells.
(b) Mitosis produces two daughter cells whereas meiosis produces ...... daughter cells.
(c) Meiosis occurs only in ..... cells.
(d) Modern humans have 46 chromosomes. Their sperms and eggs will have......chromosomes each.
(e) During the pairing of chromosomes in meiosis, the ...... chromosomes come to lie side by side.
(f) The.......(s) are surrounded by radiating rays and termed as aster.

Cell division serves the following functions: ______, ________ and________. Mitosis helps in ________ , _______and _________. DNA replication happens once during _______ followed by ________. Humans have _________ chromosomes i.e. diploid condition.

In meiosis, parents cells are _______ while daughter cells are ________. Meiosis occurs with two cell divisions -- first is reduction division and second is mitotic division. In simple organisms all germ cells are generally similar. In complex organisms, germ cells take in differential roles. The egg is generally large and contains a good source. The sperm is small and mobilr . Conventionally, _________germ cells are called male gamete.

Q. What would have been happened if any of the cells in nature had not been divided by meiosis?

Q. The process of human spermatogenesis produces four sperm cells. Of the four cells produced, two of them have 20 chromosomes, and two of them have 26 chromosomes. The non-disjunction that caused the cells to have an unbalanced chromosome number probably occurred during which stage of meiosis?

Join BYJU'S Learning Program