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

Reduction division (meiosis) during gamete formation halves the chromosome number in both male and female gametes. Since these two gametes fuse during fertilisation, the original number of chromosomes (as in...

Number of chromosomes in female gamete is 24 Number of chromosomes in zygote is 48, as it is formed after fertilization of both male & female gamete.

Yes, the constancy is maintained because cells in all these three structures undergo only mitotic divisions.

(a) sanctuary  (b) endemic  (c) climatic

It is true that any change in the abiotic/biotic factor will arrest a particular seral stage leading to a pre-climax condition before the climax stage is achieved. This can happen...

It is true that any change in the abiotic/biotic factor will arrest a particular seral stage leading to a pre climax condition before the climax stage is achieved. This can...

The correct statement is(c).  The voltage gain of a transistor amplifier is constant at mid-frequency range only. It is low at high and low frequencies.

Chromosomes are thread-like structures, made of proteins and DNA, found in the nucleus at the time of cell division. In sexually reproducing organisms, the gametes undergo meiosis, and hence, each gamete...

Current remains constant.

Turner’s syndrome