List of top Biology Questions

$GAATTC$ is the recognition site for which of the following restriction endonuclease?

Electrostatic precipitators are extensively employed to control

Elephant tusk is a modified

During chain elongation peptide bond is formed between carboxyl group of Ist amino acid and amino group of 2nd amino acid by

Which one of the following layer of the anther wall helps in its dehiscence ?

Who is considered as the father of Ecology in India?

Which of the following combinations is correct for wheat?

The predominant antibody in saliva is

The long and short arms of chromosome are designated respectively as

Solute potential of a solution is always

Lactobacillus mediated conversion of milk to curd results because of

IUCN stands for

Hotspots of biodiversity means

The beginning of understanding genetic transformation in bacteria was made by

Conservation in the natural habitat is

Colour blindness is due to defect in

Biradial symmetry is found in

Micropropagation is a technique

Root cells of wheat has 2n = 42 chromosomes. Which one of the following is the basic chromosome number of Wheat ?

When the cell is fully turgid, its

In a DNA molecule distance between two bases is

Quiescent centre is found in plants at :

First genetically modified plant commercially released in India is

Bile salts act as activator of which enzyme ?

Bell-shaped polygonal pyramid indicates