Tag: TIFR Previous Year Question Papers Biology PYQ With Answer Key Download

1. Which of the following contribute to climate change? a. The ozone hole b. Lead additives in petrol c. Natural-gas-based power d. All of the above Natural gas-based power contributes […]

15. A protein is purified from a cell extract. SDS-polyacrylamide gel electrophoresis is performed for analysis of the protein using treatment with dithiothreitol (DTT) and protease. The image of the […]

14. The pedigree shown is of three generations and show which individuals suffer from genetic disorder that is 100% penetrant and appears after 40 years of age: individuals that show […]

13. A bacterial strain has the following features with regards to growth: (i) Will grow on agar supplemented with Arginine (arg), Tryptophan (trp) and Leucine (leu). It is not capable […]

12. DNA was isolated from wild type (Gal+) and mutant (Gal-) E.coli cells and separated by density gradient centrifugation technique. DNA from Gal- strain acquired a lower position. This indicates […]

11. Meiosis is used to generate gametes. When is meiosis completed in mammalian females? a. During oogonia maturation in the fetal ovaries b. In all primary oocytes during maturation at […]

10. A series of beakers of water of different temperatures are placed in front of you. You place your finger in each one, and select the beaker containing water of […]

9. Bacterial antibiotics can interfere with all of the following, except: a. Protein Synthesis b. Peptidoglycan Synthesis c. Reverse Transcription d. DNA Synthesis Bacterial Antibiotics Interference MCQ: Detailed Solution and […]

8. A group of 3 cells, the P6p, P5p and the anchor cell are clustered together in the C.elegans hypodermis. Normally the P6p cell gives divides 3 times and forms […]

7. A genetic cross was set between two heterozygous mice with agouti coat colour. Agouti is dominant over normal coat colour. The F1 phenotypic ratio with regards to coat colour […]