List of top Biology Questions

How many plants in the list give below have composite fruits that develop from an inflorescence Walnut, poppy, radish, fig, pineapple, apple, tomato, mulberry
Sternum is connected to ribs by
Elbow joint is an example of
In a population of 1000 individuals 360 belong to genotype AA, 480 to Aa and the remaining 160 to aa. Based on this data, the frequency of allele A in the population is :-
The haemoglobin of a human foetus
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?
Match the following (column I with column II) Column I Column II (a) Chlamydomonas (i) Moss (b) Cycas (ii) Pteridophyte (c) Selaginella (iii) Algae (d) Sphagnum (iv) Gymnosperm
How is a pinnately compound leaf different from a palmately compound leaf?
Briefly mention the mechanism of action of FSH.
Differentiate between :
(a) Racemose and cymose inflorescence
(b) Apocarpous and syncarpous ovary
Diagrammatically indicate the location of the various endocrine glands in our body.
Name the three basic tissue systems in the flowering plants. Give the tissue names under each system.
How do you distinguish between a skeletal muscle and a cardiac muscle?
Write the difference between: 
(a) Actin and Myosin 
(b) Red and White muscles 
(c) Pectoral and Pelvic girdle
Define sliding filament theory of muscle contraction.
Draw the diagram of a sarcomere of skeletal muscle showing different regions.
What is the significance of juxta glomerular apparatus (JGA) in kidney function?
Give a brief account of the counter current mechanism.
Draw a standard ECG and explain the different segments in it.