What does operon model represent ?

Which of the following forms endosperm after fusion with male
gamete ?

Fossils are generally found in –

During which process Okazaki fragments are synthesized ?

Human antibodies are made of –

Which one is not a hydrophytic plant ?

Which is the number of chromosomes in Turner’s syndrome ?

Opium is obtained from –

𝐵-lymphocytes are produced in –

Which infective stage of Plasmodium occurs in human ?

Ti-plasmid is obtained from which of the following ?

‘Cry-gene’ prevents which crop from bollworm ?

Termination codon is –

DNA double helix is –

Which organelle is not present in the cytoplasm of ovum ?

Which enzyme is required in the process of transcription ?

Wings of insects and birds are called as -

Relaxin is secreted by –

Which one is pioneer in a xerosere ?

Which of the following is a heavy-metal water pollutants ?

Ovulation takes place in –

Where is the Ranthambore National Park situated ?

Sex chromosome of human beings are –

The mobile genetic element is –

Peripatus is connecting link between –

Hugo de Vries proposed –

Transgenic ‘hirudin’ is obtained from which of the following?

Entamoeba histolytica is a pathogen of which disease in the
following?

The two components of an ecosystem are –

Reproduction which does not involve gametic union is called ?

Eutrophication is found in –

The F2 phenotypic ratio in dihybrid cross is –

Roots of which plant give rise to a new plant ?

Which one is an example of endomycorrhiza ?

What causes acid rain ?