Embryology MCQ's Latest Exam Questions and Correct Answers.

Embryology MCQ's Latest Exam
Questions and Correct Answers.
Fertilization ability of the spermatozoon is preserved for 24-30 hours.



YES/NO - Answer YES



Two veins and one artery are present in the umbilical cord of the newborn baby.



YES/NO - Answer NO



The yolk sack (sacculus vitellinus) takes part in the formation of the embryo discus.



YES/NO - Answer YES



Amnion is not involved in the formation of the embryo discus.



YES/NO - Answer NO



The cells obtained as a result of segmentation are called blasters.



YES/NO - Answer NO



The trophoblast related structures are associated with the implantation and nutrition of the
embryo.



YES/NO - Answer YES



The smooth chorion (chorion laeve) takes part in the formation of the fetal sack.



YES/NO - Answer YES



The embryoblast cells situated on the floor of the amnion differentiate into the ectoderma.



YES/NO - Answer YES

, The chorion frondosum participates in the formation of the placenta.



YES/NO - Answer YES



Linea primitiva (the primitive line) is a temporary structure related to the organisation of the
mesoderma.



YES/NO - Answer YES



The sperm volume normally is:

a/ 2 - 6 ml

b/ 6 - 8 ml

c/ 8 - 10 ml

d/ 10 - 12 ml - Answer a/ 2 - 6 ml



The II type oocyte has a fertilisation ability during:

a/ 6 - 12 hours

b/ 12 - 24 hours

c/ 24 - 36 hours

d/ 36 - 72 hours - Answer a/ 6 - 12 hours



The spermatozoa number in 1cm^3 sperm is:

a/ 10 - 30*10^6 cm^3

b/ 400 - 500*10^2 cm^3

c/ 40 - 120*10^6 cm^3

d/130 - 160*10^6 cm^3 - Answer c/ 40 - 120*10^6 cm^3



The minimum part of mobile spermatozoa in the sperm necessary for fertilisation is above:

a/ 10%

b/ 20%

c/ 30%

d/ 50% - Answer d/ 50%



The process of transformation of spermatids into spermatozoa is called: