LIFE SCIENCE

OBJECTIVE LIFE SCIENCE

MOLECULAR BIOLOGY

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
What is formed during transcription?
A
RNA strand complementary to DNA strand, formed by RNA polymerase
B
DNA strand complementary to DNA strand, formed by DNA polymerase
C
RNA strand complementary to RNA strand, formed by DNA polymerase
D
DNA strand complementary to RNA strand, formed by RNA polymerase
Explanation: 

Detailed explanation-1: -At this point, RNA polymerase begins moving down the DNA template strand in the 3’ to 5’ direction, and as it does so, it strings together complementary nucleotides. By virtue of complementary base-pairing, this action creates a new strand of mRNA that is organized in the 5’ to 3’ direction.

Detailed explanation-2: -RNA polymerases are enzymes that transcribe DNA into RNA. Using a DNA template, RNA polymerase builds a new RNA molecule through base pairing. For instance, if there is a G in the DNA template, RNA polymerase will add a C to the new, growing RNA strand.

Detailed explanation-3: -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.

There is 1 question to complete.