PCR and Restriction Fragment Length Polymorphism are the methods for:

1. Study of enzymes

2. Genetic transformation

3. DNA sequencing

4. Genetic fingerprinting

Best defined function of manganese in green plants is :

1. Photolysis of water

2. Calvin cycle

3. Nitrogen fixation

4. Water absorption

Measuring Biochemical Oxygen Demand (BOD) is a method used for:

Which one of the following is not part of a transcription unit in DNA?

1. The inducer

2. A Terminator

3. A promoter

4. The structural gene

A certain road accident patient with an unknown blood group needs an immediate blood transfusion. His one doctor friend at once offers his blood. What was the blood group of the donor?

Consumption of which one of the following foods can prevent the kind of blindness associated with vitamin-A deficiency?

The maximum amount of electrolytes and water (70-80%) from the glomerular filtrate is reabsorbed in which part of the nephron?
1. Ascending limb of the loop of Henle
2. Distal convoluted tubule
3. Proximal convoluted tubule
4. Descending limb of the loop of Henle

Both, autogamy and geitonogamy are prevented in:

1. Papaya

2. Cucumber

3. Castor

4. Maize

Placentation in tomato and lemon is:

A person entering an empty room suddenly finds a snake right in front on opening the door. Which one of the following is likely to happen in his neurohormonal control system?