NEET MCQ on Embryology Quiz Questions

1. This phase in the development of sperm has no counterpart in ovum-development

A spermiogenesis B phase of multiplication C phase of growth D polar body formation

2. During this phase, the nuclear envelope begins to disappear

A cytokinesis B S phase C Anaphase D Prometaphase

3. In humans, the number of ova and sperms that would be produced from 100 secondary oocytes and 100 secondary spermatocytes during gametogenesis is

A 50 ova, 100 sperms B 100 ova, 100 sperms C 100 ova, 200 sperms D 200 ova, 200 sperms

4. The undifferentiated primordial germ cells are larger in size and their chromatin rich nuclei are distinct in

A growth phase B multiplication phase C maturation phase D all of these

5. Spermatogenesis and oogenesis describe the process of meiosis in males and females, respectively This statement about both processes is true

A both are halted in an intermediate step until puberty B both produce the same number of viable gametes C oogenesis produces a larger gamete than spermatogenesis D oogenesis forms two polar bodies, spermatogenesis forms only one

6. Typically, in humans, gametes are disease-free or even in other animals as

A gametes are immune to diseases B germs cannot attack gametes C germplasm is segregated easily and not subjected to diseases from which somatic cells may suffer D none of these

7. Phenomena that creates female gametes, oogenesis is ceased at prophase I up till puberty This describes the DNA content of a female’s gametes during her childhood

A 23 chromosomes, 23 chromatids B 23 chromosomes, 46 chromatids C 46 chromosomes, 92 chromatids D 46 chromosomes, 46 chromatids

8. The amount of yolk and its distribution are changed in the egg This is affected

A ferrilization B cleavage pattern C zygote formation D number of blastomeres

9. Haemoendothelial placenta takes place in

A rat and rabbit B camel and deer C goat and cow D ape and man

10. Atretic follicles occur in

A Liver B Testis C Thymus D Ovary