List of top Biology Questions

Entry of pollen tube into ovule through its micropyle is

Compared to a bull a bullock is docile because of

Transfer of genetic information through virus is

Conversion of 1 , 3-diphosphoglyceric acid to 3-phosphoglyceric acid is

Which is the odd one ?

For a critical study of secondary growth in plants, which one of the following pairs is suitable?

In gymnosperms, the pollen chamber represents

Increased asthmatics attacks in certain seasons are related to

Sex linkage was discovered by

The lentic ecosystem includes which of the following water ?

Which one of the following elements is not an essential micro-nutrient for plant growth ?

Which one of the following is surrounded by a callose wall?

Which one of the following is a viral disease of poultry ?

Which of the following is a flowering plant with nodules containing filamentous nitrogen-fixing micro-organism?

The finches of Galapagos Islands provide an evidence in favour of

Growth rings are formed due to activity of

Black rust of wheat is caused by

During transcription, $RNA$ polymerase holoenzyme binds to a gene promoter and assumes a saddle-like structure. What is it's $DNA$-binding sequence ?

A sequential expression of a set of human genes occurs when a steroid molecule binds to the:-

Feeling the tremors of an earthquake, a scared resident of seventh floor of a multistoryed building starts climbing down the stairs rapidly. Which hormone initiated this action ?

Bowman's glands are located in the

Which one of the following is a matching pair of a body feature and the animal possessing it?

Ergot of rye is caused by a species of

Biological organisation starts with

Select the correct statement from the following: