Molecular Biology

DNA Structure and Functions (a quick Revision)

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DNA DNA – a polymer of deoxyribonucleotides found in chromosomes, mitochondria, and chloroplasts carries the genetic information. DNA structure a) Primary structure (figure-1) Represents the linear sequence of deoxyribonucleotides linked together by 3′-5′ phosphodiester linkages The informational content of DNA resides in the sequence in which monomers—purine and pyrimidine deoxyribonucleotides—are ordered. The polymer, as depicted, […]

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Molecular Biology-Multiple-choice questions (set-2)

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Q.1- Which statement best describes the ‘semi-conservative replication’ of DNA? A) In each replication cycle, only one of the two DNA strands is replicated B) In each replication cycle, one of the parental strands is conserved C) In each replication cycle, the daughter cells acquire either the parental stands or new stands D) Only half

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Molecular Biology- Multiple-choice questions (set-1)

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Q.1- A critical enzyme used directly in the synthesis of dTMP (thymidine) is a) Carbamoyl phosphate b) Aspartate Transcarbamylase c) Dihydrooratase d) Thymidylate synthase Q.2- In which phase of the cell cycle does DNA replication occur? a) G0 b) G1 c) S d) G2 Q.3-A 10-month-old baby boy presents with steatorrhea, recurrent pulmonary infections, GI

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