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प्रश्न
In meiosis, the number of chromosomes becomes ___________.
विकल्प
multiple times
triple
half
double
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उत्तर
In meiosis, the number of chromosomes becomes half.
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संबंधित प्रश्न
Name the functions - Acrosome of sperm.
Fill in the blank.
---------- type of reproduction occurs without fusion of gametes.
Give scientific reason.
Older women are more likely to give birth to children with some abnormalities.
Give scientific reason.
There is a menopause when women are 45-50 years old.
If newborns are produced at the age of menopause, they may be with some abnormalities. Why?
In angiosperms, the pollen germinates to produce a pollen tube that carries two gametes. What is the purpose of carrying two gametes when a single gamete can fertilize the egg?
Sex organs produce gametes which are diploid.
The glandular accessory organ which produces the largest proportion of semen is ____________.
Define gametogenesis.
Identify the diploid cell.
Identify the CORRECT sequence of events.
Draw a labelled diagram of a Graafian Follicle.
There is no cell division involved in ______.
A reaction of granules content which harden the zona pellucida and ensures sure block to polyspermy is ______.
The nutritive cells found in seminiferous tubules are ______.
Fetal sex can be determined by examining cells from amniotic fluid looking for:
During reproduction, the chromosome number (2n) reduces to half (n) in the gametes and again the original number (2n) is restored in the offspring. What are the processes through which these events take place?
In spermatogenesis, at the end of the first meiotic division ______ are formed.
Process of maturation and development of sperms ______.
