Which set is similar:
1. Corpus luteum – Graafian follicles
2. Sebum-sweat
3. Bundle of his – Pacemaker
4. Vita - Niacin
Mainly which hormones control the menstrual cycle in human beings:
1. FSH
2. LH
3. FSH, LH, Estrogen
4. Progesterone
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.
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 |
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
In a human female, the blastocyst:
1. | gets implanted into uterus three days after ovulation |
2. | gets nutrition from uterine endometrial secretion only after implantation |
3. | gets implanted in endometrium by the trophoblast cells |
4. | forms placenta even before implantation |
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:
Developmental stage | Site of occurrence | |
1. | Blastula | End part of fallopian tube |
2. | Blastocyst | Uterine wall |
3. | 8-celled morula | Starting point of fallopian tube |
4. | Late morula | Middle part of fallopian tube |
Absence of acrosome will affect which activity in a normal sperm?
1. Maturation of sperm
2. Energy utilization for movement
3. Sperm motility
4. Penetration into the ovum
Which of the following in not associated with the secretion of milk in mammary glands?
1. Mammary duct
2. Mammary lobes
3. Mammary alveoli
4. Glandular cells
Choose the incorrect match
(1) Morula – 8 to 16 blastomeres
(2) Blastocyst – Implantation in
Endometrium
(3) Second polar body – Completion of 1st
meiotic division
(4) Foetal ejection reflex – Cortisol, estrogen,
oxytocin