The two subunits of ribosomes remain united at critical ion level of _______.

(a)

Magnesium

(b)

Calcium

(c)

Sodium

(d)

Ferrous

Sequences of which of the following is used to know the phylogeny.

(a)

mRNA

(b)

rRNA

(c)

tRNA

(d)

HnRNA

Keeping in view the fluid mosaic model for the structure of cell membrane which one of the following statements is correct with respect to the movement of lipids and proteins from one lipid monolayer to the other.

(a)

Neither lipid nor proteins can flip-flop

(b)

Both lipid and proteins can flip flop

(c)

While lipids can rarely flip-flop proteins cannot

(d)

While proteins can flip-flop lipids cannot

The term animalcules was used by______.

(a)

Pasteur

(b)

Dutrochet

(c)

Leeuwenhoek

(d)

Robert Hooke

A patch stop carrier is a part of_______

(a)

Bright field microscope

(b)

Dark field microscope

(c)

Electron microscope

(d)

Phase contrast microscope

The metacentric chromosomes are shaped___________

(a)

L

(b)

V

(c)

J

(d)

I

Polytene chromosomes are observed in_________ of Drosophilia

(a)

Endocrine gland

(b)

Gall bladder

(c)

Salivary gland

(d)

Exocrine gland

Lampbrush chromosomes occur at ____________stage of meiotic Prophase I.

(a)

Leptotene

(b)

Diplotene

(c)

Zygotene

(d)

Pachytene

Number of basal rings in gram positive bacteria _____________

(a)

2

(b)

4

(c)

6

(d)

8

Cytoplasm is stained _______by eosin.

(a)

Pink

(b)

Blue

(c)

Greenish blue

(d)

Green