List of top Biology Questions

The law of limiting factors for photosynthesis was enunciated by:
Who said that transpiration is a necessary evil?
Transpiration would be lowest when:
The number of female flowers found in a cyanthium is:
In turnip, 2/3 part of swollen area is derived from:
Bowman's capsule is found in:
Biotic factors are:
Which of the following is used as antitranspirant ?
The prokaryotic cell does not contain :
In the lac-operon model, lactose molecules function as
Secretin and cholecystokinin are digestive hormones. They are secreted in
In a man, abducens nerve is injured. Which one of the following functions will be affected ?
Aldosterone is secreted by:
In which one pair, both the plants can be vegetatively propagated by leaf pieces?
A woman with normal vision, but whose father was colour blind, marries a colour blind man. Suppose that the fourth child of this couple was a boy. This boy
More than 70% of world's freshwater is contained in :
Which of the following is generally used for induced mutagenesis in crop plants?
Which of the following is the simplest amino acid
Which of the following is not used for disinfection of drinking water ?
In a woody dicotyledonous tree, which of the following parts will mainly consist of primary tissues ?
Which one of the following characters is not typical of the class-Mammalia ?
From the following statements select the wrong one
Animals have innate ability to escape from predation. Examples for the same are given. Select the incorrect example
Most of the petrocrops belong to family
A student wishes to study the cell structure under a light microscope having 10X eyepiece and 45X objective. He should illuminate the object by which one of the following colours of light so as to get the best possible resolution?