The fluid which is rich in calcium fibrinolysin and acid phosphatase and contributes about 30% of the total volume of semen, is released by

(1) Cowper's glands

(2) prostate gland

(3) seminal vesicles

(4) epididymis

Correct hormonal sequence in the case of menstruation as

(1) oestrogen, FSH, progesterone

(2) Oestrogen, progesterone, FSH

(3) FSH, progesterone, oestrogen

(4) FSH, oestrogen, progesterone

Atretic follicles are found in the

(1) fallopian tubes

(2) uterus

(3) labia majora

(4) ovary

Which of the following induces parturition?

(1) Vasopressin

(2) Oxytocin

(3) GH

(4) TSH

Among the following stem cells, which are found in the umblical cord?
(1) Embryonic stem cells

(2) Adult stem cells

(3) Cord blood stem cells

(4) All of the above 

Which of the following hormones is secreted by implanted blastocyst, that acts on the corpus luteum in the ovary, stimulating the body to produce estrogens and progesterone to maintain the uterine lining?
(1) Estrogen 

(2) HCG

(3) Progesterone

(4) Oxytocin

Assertion   :       Embryonic development proves interrelationship and common ancestory of metazoans.

Reason      :       It involves similar sequence of five dynamic processes during development.

Assertion   :       There is generally monospermy in most of animals.

Reason      :       Vitelline membrane of ovum checks polyspermy.

Assertion   :       Penetration of sperm into ovum is a chemical process.

Reason      :       Acrosome of sperm secretes a lytic enzyme hyaluronidase which dissolves vitelline membrane of ovum.

Assertion :     Cleavage is also called fractionating process.

Reason    :     In cleavage, number of blastomeres increases but size of blastomears decreases.