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8. A student was asked to clone a DNA fragment flanked by BamHI (GGATCC) sites into a vector cut with BglII (AGATCT). The cloning was successful, as these two restriction […]

7. Dogs are genetically very close to wolves. Yet all wolves look similar while the breeds of dogs look very different from one another. This is best explained by which […]

6. The recent all India tiger census counted all individuals above the age of 1 year as adults. An earlier estimate four years ago included only individuals above the age […]

5. Which of the following statements is incorrect about meiosis? a. Two rounds of DNA replication occur b. The chromosome number is reduced to half c. Four daughter cells are […]

4. In a new species of bacteria, tRNA anticodons are recognized by two nucleotide bases instead of three. What would be the number of amino acids and the number of […]

3. In PCR, annealing temperature of the primer does not depend on: a. Primer length b. dNTP concentration c. The secondary structure of the primer d. The GC content of […]

2. Which one of the following would produce the highest variability of gametes if the alleles assorted independently? a. Yy PP Tt Rr b. Yy Pp Tt Rr c. YY […]

1. Ocean acidification has multiple consequences on marine life, including reducing availability of carbonate for skeletal formation of ocean organisms, increasing coral bleaching, and other impacts. The main driver of […]

15. Which of the options listed below show the most appropriate set of reagents to carry out the following reaction? a. i. EtMgBr, ii. HCl b. i. HCl, ii. EtMgBr […]

14. A molecule has formula C4H8O2. Based on the following proton NMR spectrum, what is the structure? a. A b. B c. C d. D The correct structure is option […]