Milk protein is acted upon by a gastric enzyme

 1. Caesin
 2. Rennin
 3. Pepsin
 4. Caesinogen

Rh factor wa s discovered by
 1) K land Sterner and A.S. Winer
 2) Hugo Deveries
 3) T H Moran
 4) R R race

There is no differentiation into cortex and stele in

 1) monocot root
 2) dicot stem
 3) monocot stem
 4) dicot root

Cell wall degrading enzyme mixture is
 1) cellulase
 2) cellulysin
 3) pectinase
 4) all the three

In man sperms move after ejaculation at a rate of nearly
1. 2 to 4 mm/minute
2. 2 to 4 feet/minute
3. 2 to 4 inches/minute
4. 2 to 4 cms/minute

Trypanosama, the causative agent of African sleeping sickness belongs to which class of protozoa ?
1. Rhizopoda
2. Mastigophera
3. Sporozoa
4. Ciliata

Chiasma formation indicates :
1. bouquet formation 
2. synapsis 
3. crossing over 
4. meiosis

CSF contains abundant quantity of
 1) Amino acids
 2) Glucose
 3) Chloride
 4) Sodium bicarbonate

A high concentration of synthetic auxins is generally used for
1. regulating the growth of roots
2. weed control
3. controlling cell enlargement
4. preventing the growth of lateral shoots

In humans, what is the ratio of the number of gametes produced from one male primary sex cell to the number of gametes produced from one female primary sex cell?

1. 1:3
2. 1:4
3. 3:1
4. 4:1