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Q.28 Arrange the given processes involved in nitrogen cycle: Ammonia formation Organic nitrogen formation Soil organic nitrogen formation Nitrate formation Choose the correct answer: (A), (B), (C), (D) (A), (B), […]

Q.27 What are the function of topoisomerases? 1. Repair the chromosome ends 2.Fonn DNA isomers 3. Change the Linking Number of DNA 4. Fonn RNA isomers Answer: Option 3 (Change […]

Q.26 With the addition of linking number (Lk) by +2 to a relaxed DNA consisting of Lk = 200: DNA undergoes positive supercoiling with Lk = 202 DNA undergoes positive […]

Q.25 Arrange according to their lower to higher genome size: Lambda (λ) T4 ΦX174 T7 Choose the correct answer: (A), (B), (C), (D) (B), (A), (C), (D) (C), (D), (A), […]

Q.24 Nucleosome is basically composed of: Histone core Linker histone Core DNA Linker DNA Choose the correct answer: (A), (B) and (D) only (A), (B) and (C) only (A), (C) […]

Q.23 Match List I with List II LIST I LIST II A. Histone erasers I. Methyltransferase B. Histone readers II. Deacetylases C. Histone writers III. Topoisomerase D. DNA Unwinding IV. […]

Q.22 What percentage of genes are found in human genome? I. 25% of the genome 2. 30% of the genome 3.40% of the genome 4.45% of the genome Only ~1-2% […]

Q.21 Number of chromosomes present in Arabidopsis thaliana is- 1.8 2. 10 3. 12 4. 14 Answer: None of the options are correct. Arabidopsis thaliana has 5 chromosomes (2n=10). Arabidopsis […]

Q.20 Match List I with List II LIST I DNA/RNA Modifying Enzymes LIST II Reactions A. DNase I I. Cleaves and digests RNA and not DNA B. RNase A II. […]

Q.19 In the technique called centrifugation, the centrifugal field (G) is calculated as: G = ω × r2 G = ω2 × r G = ω2 × r2 G = […]