List of top Biology Questions

World Ozone Day is celebrated on

Niche is

Which of the following is a secondary pollutant ?

Use of bioresources by multinational companies and organisations without authorisation from the concerned country and its people is called

In India, the organisation responsible for assessing the safety of introducing genetically modified organisms for public use is

Which of the following flowers only once in its life-time ?

Offsets are produced by

Which of the following is commonly used as a vector for introducing a DNA fragment in human lymphocytes ?

The correct order of steps in Polymerase Chain Reaction (PCR) is

Which of the following has proved helpful in preserving pollen as fossils ?

Which of the following pairs is wrongly matched ?

Select the wrong statement :

Secondary xylem and phloem in dicot stem are produced by

Select the correct match :

The experimental proof for semiconservative replication of DNA was first shown in a

Plants having little or no secondary growth are

Casparian strips occur in

Pneumatophores occur in

Sweet potato is a modified

Which of the following statements is correct ?

Which of the following features is used to identify a male cockroach from a female cockroach ?

Among the following sets of examples for divergent evolution, select the incorrect option :

The correct order of steps in Polymerase Chain Reaction $(PCR)$ is