List of top Biology Questions

The cardiac pacemaker in a patient fails to function normally. The doctors find that an artificial pacemaker is to be grafted in him. It is likely that it will be grafted at the site of

In the ABO system of blood groups, if both antigens are present but no antibody, the blood group of the individual would be

In India, human population is heavily weighed towards the younger age groups as a result of

Which is the most important factor for continuity of a species from evolutionary point of view?

Forelimbs of cat, lizard used in walking; forelimbs of whale used in swimming and forelimbs of bats used in flying are an example of :-

Which one of the following is a wrong statement

What is antisense technology?

Give three hypotheses for explaining why tropics show greatest levels of species richness.

Find and write down structures of 10 interesting small molecular weight biomolecules. Find if there is any industry which manufactures the compounds by isolation. Find out who are the buyers.

Adsorption of water by hydrophilic colloids is

Take one flower of the family Solanaceae and write its semi-technical description. Also draw their floral diagram.

Male not responding to O-2, diagnosis ARDS. What is the role of IL-8 in ARDS?

Define and understand the following terms: 
(i) Phylum 
(ii) Class 
(iii) Family 
(iv) Order
(v) Genus.

Write a note on economic importance of algae and gymnosperms.

Try to collect all the currently accepted meanings for the word ‘species’. Discuss with your teacher the meaning of species in case of higher plants and animals on one hand, and bacteria on the other hand.

State two economically important uses of:

1. heterotrophic bacteria
2. archaebacteria

What would be the molar concentration of human DNA in a human cell? Consult your teacher.