Several hormones like hCG, hPL, oestrogen, progesterone are produced by

(1) ovary

(2) placenta

(3) Fallopian tube

(4) pituitary

The DNA molecule to which the gene of interest is integrated for cloning is called:

Pick up the wrong statement.

1. Cell wall is absent in Animalia.

2. Protista have photosynthetic and heterotrophic modes of nutrition.

3. Some fungi are edible.

4. Nuclear membrane is present in Monera.

A technique of micropropagation is

1. Somatic hybridisation

2. Somatic embryogenesis

3. Protoplast fusion

4. Embryo rescue

Sliding filament theory can be best explained as

1. when myofilaments slide pass each other actin filaments shorten while myosin

filament do not shorten

2. actin and myosin filaments shorten and slide pass each other

3. actin and myosin filaments do not shorten but rather slide pass each other

4. when myofilament slide pass each other myosin filament shorten while actin filaments

do not shorten

The active form of Entamoeba histolytica feed upon

1. Erythrocytes, mucosa and submucosa of colon

2. Mucosa and submucosa of colon only

3. Food in intestine

4. Blood only

The shared terminal duct of the reproductive and urinary system in the human male is 

1. Urethra

2. Ureter

3. Vas deferens

4. Vasa efferentia

The main function of mammalian corpus luteum is to produce

1. estrogen only

2. progesterone

3. human chorionic gonadotropin

4. relaxin only

Select the correct option describing gonadotropin activity in a normal pregnant female

1. High level of FSH and LH stimulates the thickening of endometrium

2. High level of FSH and LH facilitate implantation of the embryo

3. High level of HCG stimulates the synthesis of estrogen and progesterone

4. High level of HCG stimulates the thickening of endometrium

Perisperm differs from endosperm in

1. being a haploid tissue

2. having no reserve food

3. being a diploid tissue

4. its formation by fusion of secondary nucleus with several sperms