List of top Biology Questions asked in AIIMS

Porous wood has abundance of
Identify the correct statement.
Extranuclear genes occurs in
During formation of which of the following free nuclear division occurs?
Clove is a
All veins carry deoxygenated blood except
Who discovered photophosphorylation?
An oocyte is released from the ovary under the influence of LH
Which of the following statements is correct regarding short day plants (SDPs)?
Photosynthetic bacteria do not contain
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
Father of plant anatomy is
Urea is transported by
The vacuoles are surrounded by a thin membrane called
The part of cauliflower that we eat is
Sprain is due to excessive pulling of
Rate of transpiration can be measured by
One of the possible early sources of energy was/were
Most of the plants cultivated in agriculture actually belong to which succession level?