List of top Biology Questions

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

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

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

Which of the following pairs is wrongly matched ?

Casparian strips occur in

Plants having little or no secondary growth are

Select the correct match :

Select the wrong statement :

Secondary xylem and phloem in dicot stem are produced by

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

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

According to Hugo de Vries, the mechanism of evolution is

Hormones secreted by the placenta to maintain pregnancy are

Which of the following is an amino acid derived hormone ?

Which one of these animals is not a homeotherm ?

Which of the following is an occupational respiratory disorder ?

In a growing population of a country,

A woman has an $X$ -linked condition on one of her $X$ chromosomes. This chromosome can be inherited by

The transparent lens in the human eye is held in its place by