Balbiani discovered special type of chromosome from the salivary gland of chironomus larva which are recognized by the presence of _____.

1. 1. Bands
   2. Loops
   3. Both bands and loops
   4. None of these

Collagen fibers of bone are hardened by deposition of_____.

1. 1. Ca & PO4
   2. CaCO3
   3. CaSO4
   4. SiO2

How many species of ascomycota occur in lichen symbiotic association?

1. 1. 20%
   2. 30%
   3. 40%
   4. 50%

Following possess bilateral symmetry as larva and radial symmetry as adult _____.

1. 1. Echinodermata
   2. Chordata
   3. Hydra
   4. Hemichordata

Diameter of thick filament is_____.

1. 1. 7 nm.
   2. 16nm
   3. 8 nm
   4. 10-100 nm.

Commonly in other plants than tall ones the speed of upward movement of water is_____.

1. 1. 8mh-1
   2. 7 mh-1
   3. 4 mh-1
   4. 1 mh-1

Stomatal transpiration is _____of total transpiration

1. 1. 91%
   2. 90%
   3. 93%
   4. 95%

All are functions of hypothalamus, but _____.

1. 1. Regulation of sleep and emotions
   2. Regulation of body temperature
   3. Regulation of anti-diuretic hormones
   4. Regulation of blood osmotic pressure

Which of the protozoa has a striking resemblance to collar cells in sponges_____.

1. 1. Choanoflagellates
   2. Zooflagellates
   3. Trypanosomoa
   4. Trichonymphas

Extreme change in pH results in_____.

1. 1. Change in ionization of amino acids at the active site of the enzyme
   2. Change in the ionization of the substrate
   3. Increase in the reaction rate
   4. Denaturation of the enzyme