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Molecular Basis of Inheritance MCQs | Very Short Questions and Answers on Molecular Basis of Inheritance

(1) RAPDs cannot be used for PCR amplification.
[A] True
[B] False
Answer: False
(2) RAPDs are much more convenient markers than RFLPs.
[A] True
[B] False
Answer: True
(3) The inheritance pattern of RAPD is _______________
[A] Dominant
[B] Recessive
[C] Codominant
[D] Random
Answer: Dominant
(4) RAPDs can be used to detect multiple alleles of a marker.
[A] True
[B] False
Answer: False
(5) Reverse transcriptase produces DNA from RNA.
[A] True
[B] False
Answer: False
(6) Which of the following serves as the first primer in RT – PCR for eukaryotic RNA?
[A] Oligo A
[B] Oligo T
[C] Oligo G
[D] Oligo C
Answer: Oligo T
(7) In RT – PCR the enzyme deoxynucleotydil transferase adds poly – G residues in the __________
[A] 5’ end of RNA
[B] 3’ end of RNA
[C] 3’ end of cDNA
[D] 5’ end of cDNA
Answer: 3’ end of cDNA
(8) The digestion of mRNA during RT – PCR is carried out by the enzyme ____________
[A] Exonuclease
[B] RNase H
[C] Bal 31
[D] Endonuclease
Answer: RNase H
(9) How many primers are used in the process of reverse transcriptase amplification?
[A] 1
[B] 2
[C] 3
[D] 4
Answer: 2
(10) From which organism is the enzyme reverse transcriptase isolated?
[A] Bacteria
[B] Fungi
[C] Virus
[D] Prions
Answer: Virus
(11) The cDNA library provides several advantages over RT – PCR.
[A] True
[B] False
Answer: False
(12) ________________ is a modification of RT – PCR.
[A] Overlap extension PCR
[B] Inverse PCR
[C] Thermal cycle sequencing PCR
[D] RACE
Answer: All of these
(13) Which of the following is not required for DNA sequencing?
[A] Restriction digestion
[B] Electrophoresis
[C] Cloning
[D] Polymerase chain reaction
Answer: Cloning
(14) End labeled DNA sequencing is known as dideoxy method of sequencing.
[A] True
[B] False
Answer: False
(15) The 32P is added at the 3’ end by polynucleotidyl kinase.
[A] True
[B] False
Answer: False
(16) The end labeled fragment is cleaved in how many pieces?
[A] 2
[B] 3
[C] 4
[D] 5
Answer: 2
(17) Restriction digestion is the only process to achieve sequencing by the Maxem and Gilbert method.
[A] True
[B] False
Answer: False
(18) The denatured strands cannot be separated.
[A] True
[B] False
Answer: False
(19) What are the basic base-specific cleavage sites used in Maxem and Gilbert method?
[A] A, T, G, C
[B] C, T, A+G, T+C
[C] A, G, A+T, G+C
[D] G, C, A+G, C+T
Answer: G, C, A+G, C+T
(20) Which step is not involved in base-specific cleavage of DNA fragment?
[A] Modification of concerned base
[B] Removal of modified base from DNA strand
[C] Induction of random strand break
[D] End labeled DNA fragments of variable lengths produced
Answer: Induction of random strand break

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