AIIMS UG 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 AIIMS UG Molecular Basis of Inheritance in the app →DNA was first identified as an acidic substance in the nucleus by:In the Watson-Crick double helix, adenine pairs with thymine via how many hydrogen bonds?In the Watson-Crick model, the two polynucleotide strands of DNA are:
In the Hershey-Chase expWatson and Crick proposed which mode of DNA replication?In E. coli (~4.6 × 10⁶ bp), DNA replication is completed in approximately 18 minutes, giving an average rate oThe enzyme that joins the discontinuous Okazaki fragments on the lagging strand is:The central dogma of molecular biology (Francis Crick) states:In eukaryotes, RNA polymerase II transcribes:Of the 64 possible codons in the genetic code:The genetic code was deciphered largely through the work of:The site of protein synthesis (translation) is the:The bond formed between two amino acids during translation is a:In the absence of lactose, the lac operon is:According to HGP findings, what percentage of the human genome codes for proteins?Which of the following is NOT a step in classical DNA fingerprinting?In eukaryotes, exons are:In a DNA double helix, adenine pairs with thymine throughThe Hershey-Chase experiment used radioactive isotopes to labelThe central dogma of molecular biology states the flow of information asIf the haploid human DNA is 3.3 x 10^9 bp and the distance between consecutive base pairs is 0.34 nm, the apprIf the pitch of the DNA helix is 3.4 nm and there are 10 base pairs per turn, the rise per base pair is:E. coli completes replication of its 4.6 x 10^6 bp genome in 18 minutes. The average polymerisation rate is clIn a transcription unit, the strand that has the polarity 3' to 5' and is used by RNA polymerase to direct RNAA double-stranded DNA contains 20% cytosine. What percentage of adenine is present?