Does the zygote formed by the fusion of two gametes have the same number of chromosomes as the parents? How?

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Solution

A Zygote is formed by the fusion of two gametes. A haploid (n) female ovum fuses with a haploid (n) male Sperm to produce a diploid (2n) zygote. Haploid gametes have 23 chromosomes each. After fusion the zygote consists of 46 chromosomes or 23 pairs of chromosomes. Hence, a dioploid zygote formed by the fusion of two haploid gametes do not have the same number of chromosomes as of gametes.

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Similar questions

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

Q. 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. Statement

1

: Zygote is the vital link between two generations.
Statement

2

: Zygote is formed due to fusion of two haploid gametes.

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??

Q. A : The gametes will be having half the number of chromosomes as compared to non-reproductive cells.
B : A zygote will also have only half the number of chromosomes.
Which option(s) would be right?

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