Which one of the following statements about morula in humans is correct?

1.	It has an almost equal quantity of cytoplasm as an uncleaved zygote but much more DNA
2.	It has far less cytoplasm as well as less DNA than in an uncleaved zygote
3.	It has a more or less equal quantity of cytoplasm and DNA as in an uncleaved zygote
4.	It has more cytoplasm and more DNA than an uncleaved zygote

The part of the fallopian tube closest to the ovary is:

A change in the amount of yolk and its distribution in the egg will affect
1. formation of zygote
2. pattern of cleavage
3. number of blastomeres produced
4. fertilization

Foetal ejection reflex in human female is induced by
1. pressure exerted by amniotic fluid
2. release of oxytocin from pituitary
3. fully developed foetus and placenta
4. differentiation of mammary glands

Which one of the following is the most likely reason for the regular menstruation cycle not occurring in females?

Seminal plasma in humans is rich in:
1. fructose, calcium and certain enzymes
2. fructose and calcium but has no enzymes
3. glucose and certain enzymes but has no calcium
4. fructose and certain enzymes but is poor in calcium

The correct sequence of spermatogenetic stages leading to the formation of sperms in a mature human testis is
1. spermatocyte$\to$ spermatogonia$\to$ spermatid $\to$sperms
2. spermatogonia$\to$ spermatocyte $\to$spermatid $\to$sperms
3. spermatid $\to$spermatocyte $\to$spermatogonia$\to$ sperms
4. spermatogonia$\to$ spermatid $\to$spermatocyte $\to$sperms

In humans, at the end of the first meiotic division, the male germ cells differentiate into
1. primary spermatocytes
2. secondary spermatocytes
3. spermatids
4. spermatogonia

Which extra embryonic membrane in humans prevents desiccation of the embryo inside the uterus?
1. Chorion
2. Allantois
3. Yolk sac
4. Amnion