Embryology is the science that looks at how an embryo grows from a tiny cell into a baby before birth. It mainly focuses on how a fetus develops in the womb. Studying embryology helps us understand how changes in genes can cause problems in development and lead to genetic disorders.
Embryology MCQ for NEET
Ques 1. The undifferentiated primordial germ cells are larger in size and their chromatin rich nuclei are distinct in
1. growth phase
2. maturation phase
3. multiplication phase
4. all of these
Answer: multiplication phase
Ques 2. 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.
1. 23 chromosomes, 23 chromatids
2. 46 chromosomes, 92 chromatids
3. 23 chromosomes, 46 chromatids
4. 46 chromosomes, 46 chromatids
Answer: 46 chromosomes, 92 chromatids
Ques 3. In humans, the number of ova and sperms that would be produced from 100 secondary oocytes and 100 secondary spermatocytes during gametogenesis is
1. 50 ova, 100 sperms
2. 200 ova, 200 sperms
3. 100 ova, 200 sperms
4. 100 ova, 100 sperms
Answer: 100 ova, 200 sperms
Ques 4. This phase in the development of sperm has no counterpart in ovum-development
1. spermiogenesis
2. polar body formation
3. phase of growth
4. phase of multiplication
Answer: spermiogenesis
Ques 5. Haemoendothelial placenta takes place in
1. rat and rabbit
2. goat and cow
3. camel and deer
4. ape and man
Answer: rat and rabbit
Ques 6. Atretic follicles occur in
1. Liver
2. Thymus
3. Testis
4. Ovary
Answer: Ovary
Ques 7. During this phase, the nuclear envelope begins to disappear
1. Prometaphase
2. S phase
3. Anaphase
4. cytokinesis
Answer: Prometaphase
Ques 8. The amount of yolk and its distribution are changed in the egg. This is affected
1. ferrilization
2. number of blastomeres
3. zygote formation
4. cleavage pattern
Answer: cleavage pattern
Ques 9. Spermatogenesis and oogenesis describe the process of meiosis in males and females, respectively. This statement about both processes is true
1. both are halted in an intermediate step until puberty
2. oogenesis forms two polar bodies, spermatogenesis forms only one
3. oogenesis produces a larger gamete than spermatogenesis
4. both produce the same number of viable gametes
Answer: oogenesis produces a larger gamete than spermatogenesis
Ques 10. Typically, in humans, gametes are disease-free or even in other animals as
1. germs cannot attack gametes
2. gametes are immune to diseases
3. germplasm is segregated easily and not subjected to diseases from which somatic cells may suffer
4. none of these
Answer: germplasm is segregated easily and not subjected to diseases from which somatic cells may suffer
