CBSE Class 12 Molecular Basis of Inheritance — practice questions
25 free MCQs with worked solutions. Tap any question for the answer + explanation, or practice them all in the app.
Practice CBSE Class 12 Molecular Basis of Inheritance in the app →In a DNA double helix, adenine pairs with thymine throughThe two strands of a DNA double helix areA nucleosome consists ofThe Hershey-Chase experiment used radioactive isotopes to labelThe Meselson-Stahl experiment proved that DNA replication isDNA polymerase synthesises a new DNA strand in which direction?In Griffith's experiment, mice injected with live R strain plus heat-killed S strain bacteriaThe central dogma of molecular biology states the flow of information asDuring transcription, the strand of DNA actually read by RNA polymerase isIntrons are best described asWhich eukaryotic RNA polymerase synthesises the mRNA precursor (hnRNA)?The total number of possible codons in the genetic code isWhich of the following is the universal start codon?In the lac operon, transcription of the lac genes is induced byApproximately how much of the human genome codes for proteins?In DNA, Adenine (A) pairs with Thymine (T) via:The Hershey-Chase experiment (1952) proved that:The Central Dogma of molecular biology states that genetic information flows:DNA replication is described as SEMI-CONSERVATIVE because:Okazaki fragments are produced during DNA replication on which strand?The START codon in eukaryotic mRNA translation is:Translation of mRNA into protein occurs on which cellular structure?The Lac Operon in E. coli is INDUCED (turned ON) by the presence of:The Human Genome Project (HGP) ran from 1990 to:During transcription, the enzyme that synthesises mRNA from DNA is: