Teaching BPSC 4.0 बिहार उच्च माध्यमिक शिक्षक भर्ती (PGT) Mock Test Biology Reproduction Human Reproduction
The number of chromosomes in parents and offsprings of a particular species remains constant due to
1
doubling of chromosomes after zygote formation
2
halving of chromosomes during gamete formation
3
doubling of chromosomes after gamete formation
4
More than one of the above
5
None of the above