Bacteria protect themselves from viruses by fragmenting viral DNA with_____.

1. 1. Ligase
   2. Exonuclease
   3. Gyrase
   4. Endonuclease

Which one of these is an insect?

1. 1. Mite
   2. Moth
   3. Spider
   4. Scorpion

The pressure generated when water enters & inflates plant cells is called _____potential?

1. 1. Water
   2. Osmotic
   3. Solute
   4. Pressure

In which cell ribosome are of large size and present either on endoplasmic reticulum or free in cytoplasm?

1. 1. eukaryotic
   2. prokaryotic
   3. both
   4. all the above

Smooth muscles, cardiac muscles and glands are regulated by _____.

1. 1. Central nervous system
   2. Autonomous nervous system
   3. Parasympathetic nervous system
   4. Sympathetic nervous system

Functional unit of DNA is_____.

1. 1. Nucleus
   2. Chromosomes
   3. Genes
   4. Nucleolus

Which of the following are the properties of Anti inflammatory medicines?

1. 1. Anti pyratic
   2. Anti inflammation
   3. Immuno suprent
   4. All of the above

Who opposed the idea the cell is an empty space bounded by thick wall?

1. 1. Robert Brown
   2. Lorenz Oken
   3. Schwann
   4. Rudolph Virchow

The increase in pH of blood has _____effect on the oxygen carrying capacity of hemoglobin.

1. 1. – ve
   2. No
   3. plus ve
   4. All of these

The most important group of producers in marine ecosystem is of_____.

1. 1. Diatoms
   2. Euglenoids
   3. Dinoflagellates
   4. Brown algae