Number of spiracles present in the thorax of cockroach is _____.

1. 1. 2
   2. 3
   3. 4
   4. 5

In the Lysogenic cycle the DNA of the bacteriophage _____.

1. 1. Attaches to the inner surface of the host membrane
   2. Joins the bacterial chromosomes
   3. Goes directly to host ribosomes for translation
   4. Is immediately degraded when enters the host

Which one of the following organs is known as graveyard of RBCs?

1. 1. Liver
   2. Spleen
   3. Pancreas
   4. Bones

80% of the food of sponges consists of_____.

1. 1. Zooplankton and small animals
   2. Detrital organic particles
   3. Phytoplanktons
   4. All of the above

Cuticular transpiration is _____of total transpiration?

1. 1. 4-6%
   2. 5-7%
   3. 6-8%
   4. 7-9%

Which of the following organelles contain its own DNA?

1. 1. chloroplast
   2. mitochondria
   3. nucleus
   4. All of these

The term ‘gene’ refers to _____.

1. 1. A linkage group
   2. A portion of RNA
   3. A sequence of Amino
   4. A portions of DNA

Biological molecules (proteins) which catalyze a biochemical reaction and remain unchanged after completion of reaction are called_____.

1. 1. Cofactor
   2. Enzymes
   3. Coenzymes
   4. Activator

Parasitic fungi absorb nutrients directly from the living host cytoplasm with the help of special hyphal tips called_____.

1. 1. Haustoria
   2. Constricting ring
   3. Mildew
   4. All of the above

Which one of the following specially result in chronic liver disease leading to hepatic failure?

1. 1. HCV
   2. HAV
   3. HEV
   4. HBV