Synergids are present at

(1) Chalazal end

(2) Micropylar end

(3) Both chalazal and micropylar ends

(4) Integument

Due to plasmolysis, the plant cell:

 (1) becomes turgid
 (2) becomes flaccid
 (3) bursts
 (4) swells up

Dermal scales characterise

1) Amphibia
2) Mammals
3) Reptiles
4) Fishes

The primary egg membrane of mammals is
 1) Corona radiata
 2) Chorion
 3) Jelly envelope
 4) Zona pellucida

Smallest R.B.Cs in the following mammals are found in

1. Man
2. Musk deer
3. Rhinocros
4. Whale

Which of the following is wrong?

 1) Marginal placentation is seen in pisum sativum
 2) Axial placentation is found in Fabaceae family
 3) Cucumber has parietal placentation
 4) In tridax plant û Basal placentation is present.

Hormone Parathormone and insulin contain Amino acids number respectively
 1) 60;41 amino acids
 2) 70; 61 amino acids
 3) 80; 51 amino acids
 4) 51; 80 amino acids

Fertilization in frog takes place in
1. Uterus
2. Fallopian tube
3. Water
4. Upper part of oviduct

Puffs in salivary gland chromosomes represent the site of

(1) RNA synthesis

(2) Protein synthesis

(3) DNA replication

(4) All of the above

Of all the enzymes of Krebs cycle, the only one located on the inner membrane of the mitochondrion is

1) Fumarase
2) succinic dehydrogenase
3) aconitase
4) carboxylase