The number of chromosomes in parents and offsprings of a particular species remains constant due to

Doubling of chromosomes after zygote formation

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Halving of chromosomes during gamete formation

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Doubling of chromosomes after gamete formation

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Halving of chromosomes after gamete formation

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Solution

The correct option is D Halving of chromosomes during gamete formation
During gamete formation, there is meiosis in which mother cell divides into 4 cells having a half number of chromosomes. In fertilization, male and female gametes fuse to form a zygote having the same number of chromosomes as parents. Hence, the number of chromosomes remains constant.

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Similar questions

Q. The number of chromosomes in parents and offsprings of a particular species remains constant due to :
(a) doubling of chromosomes after zygote formation
(b) halving of chromosomes during gamete formation
(c) doubling of chromosomes after gamete formation
(d) halving of chromosomes after gamete formation

Question 11
The number of chromosomes in parents and offsprings of a particular species remains constant due to

(a) doubling of chromosomes after zygote formation
(b) halving of chromosomes during gamete formation
(c) doubling of chromosomes after gamete formation
(d) halving of chromosomes after gamete formation

Q. What number of chromosomes are present in a gamete as compared to the parent cell after meiosis?

Question 37
In tobacco plant, the male gametes have twenty-four chromosomes. What is the number of chromosomes in the female gamete? What is the number of chromosomes in the zygote??

The number of chromosomes in parents and offsprings of a particular species remains constant due to:

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