Q164 / 180 · AIIMS 2005 · Zoology

cDNA probes are copied from the messenger RNA molecules with the help of

A
restriction enzymes
Correct answer
B
reverse transcriptase
C
DNA polymerase
D
adenosine deaminase.

Solution

Reverse transcriptase is an enzyme used by retroviruses to from complementary DNA (cDNA) from their RNA. The resulting DNA is then inserted into the chromosome of the host cell.

Hence, the correct answer is option: 'B'.

More Molecular Basis of Inheritance Questions

Identify A, B and C.25 May, 2019Transcription
Assertion : In eukaryotes, both intron and exon are transcribed to form hnRNA. Reason : Splicing is required in prokaryotes.25 May, 2019Transcription
Find out the incorrect match.27 May, 2018Transcription
If the sequence of bases in the coding strand of a double stranded DNA is 5'-GTTCGAGTC-3', the sequence of bases in its transcript will be2016Transcription
Assertion : The RNA attaches itself to the ribosome via its end. Reason : The RNA has F-capsular nucleotide and bases of lagging sequence.2002Transcription
Which of the following switches off lac operon?26 May, 2019Regulation of Gene Expression