21. The first level of regulation of gene expression in eukaryotes is A. Transcription B. DNA methylation and chromatin structure C. RNA processing D. Post transcriptional modification Answer & Solution Discuss in Board Save for Later Answer & Solution Answer: Option B No explanation is given for this question Let's Discuss on Board
22. Enzyme which digest nucleic acid by hydrolyzing phosphodiester bonds are called as A. Nucleases B. Deoxyribonucleases (if substrate is DNA) C. Ribonucleases (if substrate is RNA) D. All of the above Answer & Solution Discuss in Board Save for Later Answer & Solution Answer: Option D No explanation is given for this question Let's Discuss on Board
23. The size of the maximum DNA insert that can be cloned in a YAC A. < 300 kb B. 100 - 300 kb C. 70 - 100 kb D. 200 - 2000 kb Answer & Solution Discuss in Board Save for Later Answer & Solution Answer: Option D No explanation is given for this question Let's Discuss on Board
24. In a double stranded molecule of DNA, the ratio of purines : pyrimidines is A. Variable B. Determined by the base sequence in RNA C. Genetically determined D. Always 1 : 1 Answer & Solution Discuss in Board Save for Later Answer & Solution Answer: Option D No explanation is given for this question Let's Discuss on Board
25. The smallest plant genome identified A. Chlorella B. Oryza sativa C. Arabidopsis D. Ground nut Answer & Solution Discuss in Board Save for Later Answer & Solution Answer: Option C No explanation is given for this question Let's Discuss on Board
26. Which one of the following amino acid has crucial role in the variability of protein structure? A. Glycine B. Cysteine C. Aspartic acid D. Glutamic acid Answer & Solution Discuss in Board Save for Later Answer & Solution Answer: Option A No explanation is given for this question Let's Discuss on Board
27. Transcription is the process of A. Synthesizing a DNA molecule from RNA template B. Using DNA strand as a template to synthesize a complementary RNA molecule C. Using DNA strand as template to synthesize identical RNA molecule D. Synthesizing a protein using information carried in the nucleotide sequence of a messenger RNA Answer & Solution Discuss in Board Save for Later Answer & Solution Answer: Option B No explanation is given for this question Let's Discuss on Board
28. The ability of proteins to absorb ultraviolet light is predominantly due to the presence of A. Disulphide bond B. Hydrophobic amino acids C. Tryptophan D. Hydrophilic amino acids Answer & Solution Discuss in Board Save for Later Answer & Solution Answer: Option C No explanation is given for this question Let's Discuss on Board
29. Which of the following statement about the ribosome complex is correct? A. Small subunit binds an mRNA and large subunit joint with the mRNA/small subunit complex to form a complete ribosome B. The large ribosomal subunit has a P site (peptidyl site) that holds the growing polypeptide chain and an A site (aminoacyl site) that binds the next amino acid to be added to the growing polypeptide chain C. The additon of new amino acid in the A site to the growing polypeptide chain is catalyzed by one of the enzymes that form the large ribosomal subunit D. All of the above Answer & Solution Discuss in Board Save for Later Answer & Solution Answer: Option D No explanation is given for this question Let's Discuss on Board
30. DNA polymerase involved in general DNA replication in eukaryotes is A. α B. β C. A and B both D. γ Answer & Solution Discuss in Board Save for Later Answer & Solution Answer: Option C No explanation is given for this question Let's Discuss on Board
