List of top Biology Questions

m-RNA is synthesised on DNA template in which direction
In negative operon
In Lederberg's replica plating experiment what shall be used to obtain streptomycin resistant strain
Gene and cistron words are sometimes used synonymously because
Brain depends on blood for the supply of
Who discovered photophosphorylation?
An oocyte is released from the ovary under the influence of LH
Photosynthetic bacteria do not contain
Which of the following statements is correct regarding short day plants (SDPs)?
Stomata remain open during day. Stomata help in exchange of gases.
Cocaine is a stimulant, which may cause addiction. It is an alkaloid obtained from
Among the land animals, the Cheetah can run fastest over the ground. The Cheetah uses its powerful forelimbs to push itself forward during running.
Wooden doors swell up and get stuck during the rainy season. This is due to the phenomenon of
Which of these are considered most essential in the origin of life?
Some students, during a study, caught, marked and released 80 fishes in a pond. Later 100 fishes were caught at random. Among these 40 were found to be marked. What is the approximate number of fishes in the pond?
A human RBC is placed in 1.5% salt solution. It will
Which of the following is the nitrogenous waste?
Which of the following does not have any alimentary canal?
Which of the following are most abundant type of antibodies?
Syconus fruit develops from:
How many teeth of humans normally grow twice?
Diadelphous condition is found in:
Brush bordered epithelium is found in:
Brain depends on blood for the supply of:
Which one of the following is correctly matched?