All of the following structures are derived from mesoderm except the ____.

1. pancreas

2. dermis of skin

3. notochord

4. heart

Which of the following hormones is not secreted by the human placenta?

1. HCG

2. HGH

3. HPL

4. Progesterone

Which of the following is secreted only during the luteal phase of a menstrual cycle ?

1. LH

2. FSH

3. Estrogen

4. Progesterone

Which event is incorrectly matched with the time of its occurence [with respect to a 28 days menstrual cycle]?

1. Beginning of the menstrual flow - Day 1

2. Ovulation - Day 14

3. Beginning of the proliferative phase - Day 5

4. Peak  secretion of estrogen - Day 22

Which human male accessory reproductive duct receives a duct from the seminal vesicle?

1. Rete testis

2. Vas deferens

3. Epididymis

4. Urethra

The primary oocyte completes its first meiotic division within the:

1. Primary follicle

2. Secondary follicle

3. Tertiary follicle

4. Graafian follicle

The human fetus develops limbs and digits:

1. After one month of pregnancy

2. By the end of second month of pregnancy

3. During the fifth month of pregnancy

4. By the end of second trimester of pregnancy

In the male human being, sperms contain autosomes and

1. Only one Y-chromosome

2. Only one X-chromosome

3. Both X and Y-chromosome

4. Either X or Y-chromosome

The structure of testis of a mammal can be identified by the presence of

(1) Spermatogonia

(2) Spermatocytes

(3) Cells of Sertoli

(4) Spermatids

In the vertebrates testes, for nourishment during spermiogenesis, the spermatids get attached to

(1) Interstitial cells

(2) Sperm-mother cells

(3) Spermatocytes

(4) Sertoli cells