List of top Questions asked in IIT JAM BT- 2018

Proenzyme pepsinogen is secreted from 'P' of gastric mucosa and converted into active enzyme pepsin on exposure to 'Q' secreted from 'R'. Choose the CORRECT combination of P, Q, and R.

When bacteria are grown in glucose-depleted media containing high concentration of lactose, expression of lac operon genes is activated by

What is the source of electrons in photosynthesis?

Three vectors are as follows: \[ \mathbf{a} = 3\hat{i} - 10\hat{j} + 7\hat{k}, \mathbf{b} = -9\hat{i} + 6\hat{j} - 47\hat{k}, \mathbf{c} = 11\hat{i} - 17\hat{k} \] The value of \((\mathbf{a} + \mathbf{b}) \cdot \mathbf{c}\) is

The reaction of 11-cis-retinal with the lysine residue of a specific protein forms the light-sensitive pigment in the cells of retina. The light-sensitive pigment is an

Which of the following feature(s) should be present in a protein to generate strong immune response (antibody production) in an animal?
I. At least one B-cell epitope
II. At least one T-cell epitope
III. Proteolytic cleavage site(s)

Which one of the following statements is CORRECT for Mycoplasma?

Pyramid of energy in a forest ecosystem is

In the feedback regulation of an enzyme, the end product binds to the

Which one of the following protozoan parasites belongs to the phylum Apicomplexa?