This set of Biochemistry Multiple Choice Questions & Answers (MCQs) focuses on “RNA Processing”. 1. Which of the following statements regarding splicing in eukaryotes is correct? a) Several reactions in the splicing process involve hydrolysis of ATP b) Exons are spliced out and introns are retained in the mature mRNA transcript c) Splicing takes place … Read more
This set of Biochemistry Multiple Choice Questions & Answers (MCQs) focuses on “DNA-Dependent Synthesis of RNA”. 1. Transcription is catalyzed by ____________ a) DNA-dependent RNA polymerases b) RNA-dependent DNA polymerases c) Reverse transcriptases d) DNA ligases 2. Where does RNA polymerase bind DNA? a) Promoter b) Operator c) Enhancer d) None of the mentioned 3. … Read more
This set of Biochemistry Multiple Choice Questions & Answers (MCQs) focuses on “DNA Recombination”. 1. Which of the following involves remarkable capacity of a short segment of DNA to move from one place to another? a) DNA transposition b) DNA replication c) Translation d) Transcription 2. Which of the following process occurs between DNA molecules … Read more
This set of Biochemistry Multiple Choice Questions & Answers (MCQs) focuses on “DNA Repair”. 1. If the mutation has a negligible effect on the function of a gene, it is known as a ____________ a) Silent mutation b) Frame shift mutation c) Substitution mutation d) Insertion mutation 2. Which of the following mechanisms will remove … Read more
This set of Biochemistry Multiple Choice Questions & Answers (MCQs) focuses on “DNA Replication”. 1. What is DNA replication? a) Conservative b) Non-conservative c) Semi-conservative d) None of the mentioned 2. Semi-conservative DNA replication was first demonstrated in ____________ a) Drosophila melanogaster b) Escherichia coli c) Streptococcus pneumonae d) Drosophila melanogaster 3. Eukaryotes differ from … Read more
This set of Biochemistry Multiple Choice Questions & Answers (MCQs) focuses on “The Structure Of Chromosomes”. 1. The DNA threads which appear inside the nucleus at the time of cell division? a) Spindle fibers b) Centrioles c) Asters d) Chromosomes 2. Which of the following is not a major class of chromatin proteins? a) Histones … Read more
This set of Biochemistry Multiple Choice Questions & Answers (MCQs) focuses on “DNA Supercoiling”. 1. The phenomenon of twisting around itself by a molecule to relieve helical stress is ____________ a) Supercoiling b) Coiling c) Elongation d) Compression 2. When there is no net bending of the DNA axis upon itself, the DNA is said … Read more
This set of Biochemistry Multiple Choice Questions & Answers (MCQs) focuses on “Chromosomal Elements”. 1. The lowest level of chromosome organization is _______________ a) Nucleosome b) Solenoid c) 30nm fiber d) None of these 2. How many autosomes are there in humans? a) 21 pairs b) 44 c) 46 d) 48 3. What proportion of … Read more
This set of Biochemistry Multiple Choice Questions & Answers (MCQs) focuses on “Biosynthesis and Degradation of Nucleotides”. 1. An amino group donated by glutamine is attached at C-1 of PRPP, this results in ____________ a) 5-phosphoribosylamine b) 4-phosphoribosylamine c) 3-phosphoribosylamine d) 2-phosphoribosylamine 2. The first intermediate with a complete purine ring is ____________ a) Inosinate … Read more
This set of Biochemistry Multiple Choice Questions & Answers (MCQs) focuses on “Molecules Derived from Amino Acids”. 1. Tyrosine gives rise to a family of catecholamines that does not include ____________ a) Dopamine b) Norepinephrine c) Epinephrine d) Cortisol 2. Which of the following gives rise to γ-amino butyrate? a) Glutamate synthase b) Glutamate decarboxylation … Read more
