What happens during fertilisation in humans after many sperms reach close to the ovum?

1.	Only two sperms nearest the ovum penetrate zona pellucida
2.	Secretions of acrosome help one sperm enter the cytoplasm of the ovum through zona pellucida
3.	All sperms except the one nearest to the ovum lose their tails
4.	Cells of corona radiata trap all the sperms except one

About which day in a normal human menstrual cycle does rapid secretion of LH (popularly called LH-surge) normally occurs?
1. 11^th day 

2. 14^th day

3. 20^th day 

4. 5^th day

Signals from fully developed foetus and placenta ultimately lead to parturition which requires the release of:

Secretions from which one of the following are rich in fructose, calcium and some enzymes:

1. Liver
2. Pancreas
3. Salivary glands
4. Male accessory glands

Identify the human development stage shown below as well as the related right place of its occurrence in a normal pregnant woman, and select the right option for the two together:

Ovulation in the human female normally takes place during which phase of the menstrual cycle:

1. Just before the end of the secretory cycle.

2. At the beginning of the proliferative phase.

3. At the end of the proliferative phase.

4. At the mid-secretory phase.

Which of these induces the development of corpus Luteum:
1.  LH
2.  Oestrogen
3.  FSH
4.  LTH

After ovulation, follicles convert into:
1.  Corpus luteum
2.  Corpus albicans
3.  Corpus cavernosa
4.  Corpus callosum

Which set is similar:
1.  Corpus luteum – Graafian follicles
2.  Sebum-sweat
3.  Bundle of his – Pacemaker
4.  Vita $B_7$ - Niacin

Match the following columns and select the correct option: