Which of the following has 22 + X chromosomes in its nucleus?BlastomereZygoteOotidPrimary spermatocyte

The answer is Zygote. Here's the step by step explanation:

1. A zygote is a cell that forms when an egg and a sperm combine, which means it has chromosomes from both the mother and the father.

2. In humans, a normal egg or sperm has 23 chromosomes. Therefore, when an egg (23 chromosomes) and a sperm (23 chromosomes) combine, they form a zygote with a total of 46 chromosomes.

3. In the question, it's asked for a cell with 22 + X chromosomes. If we consider X to be the number of chromosomes contributed by the sperm, then the zygote would be the cell that fits this description.

4. The other options - Blastomere, Ootid, and Primary spermatocyte - do not fit this description. A blastomere is a type of cell produced by division of the egg after fertilization. They have the same number of chromosomes as the zygote. An ootid is an immature egg, and a primary spermatocyte is an immature sperm. Both of these would have 46 chromosomes in humans, not 22 + X.