NEET BIOLOGY

Detailed explanation-1: -Each of these daughter cells will have how many chromosomes? AI Recommended Answer: There are 36 chromosomes in a dog’s cells. So, each daughter cell will have 3 chromosomes.

Detailed explanation-2: -A meiocyte is diploid which undergoes meiosis to form haploid gametes. Gametes in turn fuse to form the diploid zygote. So the zygote of the dog will have the same number of the chromosomes as the meiocytes ie., 78.

Detailed explanation-3: -In meiosis, a cell containing the diploid number of chromosomes is converted into four cells, each having the haploid number of chromosomes. In human cells undergoing meiosis, for instance, a cell containing 46 chromosomes yields four cells, each with 23 chromosomes.

Detailed explanation-4: -The diploid chromosome number was found in both sexes to be 78, consisting of 76 autosomes and two sex chromosomes, two X in the fe-male cells and one X and one Y in the male cells (Figs. 1-2).

Detailed explanation-5: -The number of chromosomes does not correlate with the apparent complexity of an animal or a plant: in humans, for example, the diploid number is 2n = 46 (that is, 23 pairs), compared with 2n = 78, or 39 pairs, in the dog and 2n = 36 (18) in the common earthworm. There is an equally great range of numbers among plants.