List of top Biology Questions

Omega shaped vascular bundles are found in
The ratio of female to male flower is $1 : \infty$ < in
The development of single fruit is due to
Which one is saprophytic in nature?
Lysosomes are filled with
All veins carry deoxygenated blood except
What is true for plasmid : -
What is the intensity of sound in normal conversation?
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?