List of top Biology Questions

Which of the following statements is not true for retroviruses
Diversification in plant life appeared
Which one of the following is the correct matching of a vitamin, its nature and its deficiency disease
A terrestrial animal must be able to
An ovule which becomes curved so that the nucellus and embryo sac lie at right angles to the funicle is
In a longitudinal section of a root, starting from the tip upward, the four zones occur in the following order
Edible part of mango is 
Mycology is related with :
Which of the following propagates through leaf-tip?
Angiosperms have dominated the land flora primarily because of their
In C3 plants, the first stable product of photosynthesis during the dark reaction is
In chloroplasts, chlorophyll is present in the
Plants adapted to low light intensity have
Dough kept overnight in warm weather becomes soft and spongy because of
Which one of the following is a living fossil?
What is a keystone species ?
Cell elongation in internodal regions of the green plants takes place due to
Anthesis is a phenomenon which refers to
Phenetic classification of organisms is based on
The Ti plasmid is often used for making transgenic plants. This plasmid is found in
Which base is present in RNA but not in DNA?
Viruses that infect bacteria, multiply and cause their lysis are called 
Choroid plexus is a network of _____
DNA finger printing technique was first developed by________
The technique of obtaining large number of plantlets by tissue culture method is called