LABORATORY REVIEW
MOLECULAR BIOLOGY
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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RNA strand complementary to DNA strand, formed by RNA polymerase
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DNA strand complementary to DNA strand, formed by DNA polymerase
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RNA strand complementary to RNA strand, formed by DNA polymerase
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DNA strand complementary to RNA strand, formed by RNA polymerase
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Detailed explanation-1: -Transcription begins when an enzyme called RNA polymerase attaches to the DNA template strand and begins assembling a new chain of nucleotides to produce a complementary RNA strand. There are multiple types of types of RNA.
Detailed explanation-2: -Complete answer: A strand of RNA is produced during the process of transcription from a strand of DNA. The complementary RNA strand which is antiparallel and is produced by a DNA sequence is known as primary transcript.
Detailed explanation-3: -The RNA polymerase moves stepwise along the DNA, unwinding the DNA helix just ahead of the active site for polymerization to expose a new region of the template strand for complementary base-pairing.
Detailed explanation-4: -RNA polymerase synthesizes an RNA transcript complementary to the DNA template strand in the 5’ to 3’ direction. It moves forward along the template strand in the 3’ to 5’ direction, opening the DNA double helix as it goes.