Question Post Translational Modification

MCQ Questions on Prost Translational Modification with Answers (PDF)

Post-translational modifications are chemical changes made to proteins after translation, which affect their function, stability, and localization. These modifications include processes such as phosphorylation, glycosylation, acetylation, and ubiquitination. They can activate or deactivate enzymes, alter protein interactions, or target proteins for degradation. Such modifications are crucial for regulating protein activity, […]

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Questions on Post Transcriptional Modification

Questions on Post Transcriptional Modification with Answers (PDF)

Post-transcriptional modifications are processes that modify pre-mRNA into mature mRNA after transcription in eukaryotic cells. These modifications include the addition of a 5′ cap, splicing to remove introns, and the addition of a poly-A tail at the 3′ end. These changes protect mRNA from degradation, aid in its export from […]

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Questions on Chargaff Rule

Questions on Chargaff Rule (MCQ PDF

Chargaff’s rule is a key principle in molecular biology, stating that in DNA, the proportion of adenine (A) always equals that of thymine (T), and guanine (G) always equals cytosine (C). This A=T and G=C ratio varies between species but remains constant within an organism. This discovery helped Watson and […]

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mcq on dna ligase

MCQ on DNA Ligase Enzyme with Answers (PDF)

DNA ligase is an essential enzyme that facilitates the joining of DNA strands by catalyzing the formation of phosphodiester bonds between adjacent nucleotides. It plays a critical role in DNA replication and repair by sealing breaks or “nicks” in the sugar-phosphate backbone, particularly on the lagging strand where Okazaki fragments […]

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mcq on rna polymerase

MCQ on DNA Polymerase with Answers (PDF)

DNA polymerase is an enzyme responsible for synthesizing new DNA strands during replication by adding nucleotides to a pre-existing strand using the original DNA as a template. It works in the 5′ to 3′ direction, ensuring accurate base-pairing to maintain genetic fidelity. DNA polymerase also has proofreading capabilities, correcting errors […]

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