Tag: dbt jrf pyq 2021

9. You have isolated a hypothetical protein X. When X is run on a gel filtration column, the apparent size of the protein is 80 kDa. When X is run […]

8. A protein X is active when phosphorylated on Thr residue. You wish to mimic this phosphorylation by mutating Thr to another residue. Which one of these residues will you […]

7. In induced pluripotent stem cells: (a) Germ cells are transformed and passaged continuously in culture to maintain a state conducive to future pluripotent cell formation, (b) Oncogenes are added […]

5. Which one of the following strategies do viruses employ to evade the human immune system? (a) Virus binds to TCR and blocks activation of T-cells, (b) Virus infected cells […]

4. You have recently observed a mutation in gene X in patients with lung cancer. You have sequenced the gene X in these patients and have observed that (i) both […]

3. Which one of the Immunoglobulins (Ig) cause type-I hypersensitive immune reaction? (a) .IgA, (b) .IgE, (c) .IgG, (d) .IgM, Article: Introduction Type-I hypersensitivity reactions, commonly known as allergic reactions, […]

2. Enzyme-linked immunospot (ELISPOT) assay measures: (a) Cytokine concentration in culture supernatant , (b) Expression of cytokine gene (c) Intracellular cytokine concentration (d) Number of cytokine releasing cells at single […]

1. DNA replication requires DNA-Topoisomerase to remove the supercoiling of DNA that accumulates at the end of a growing replication fork. You wish to perform a PCR amplification of a […]