Question

Which of the following best describes transcription?

O Transcription is the replication of DNA molecules so that each cell will have the same DNA.
O Transcription is the conversion of a DNA code into an mRNA code.
O Transcription involves tRNA carrying amino acids to the ribosome.
O Transcription is the interpretation of an mRNA code to build a protein.

Answer 1

Transcription is the conversion of the genetic instructions in DNA into a complementary mRNA code by the process of adding RNA nucleotides using RNA polymerase. Therefore correct option is B

Step-by-step explanation:

Transcription is the process by which the genetic instructions in a strand of DNA are copied into a complementary strand of messenger RNA (mRNA). During transcription, an enzyme called RNA polymerase binds to the DNA at a specific region known as the promoter and unwinds the DNA so that RNA nucleotides can be added to one of the DNA strands following the base pairing rules, which dictate that adenine (A) pairs with uracil (U) in RNA instead of thymine (T). This process occurs in the nucleus of the cell, and once a full mRNA strand has been synthesized, it is then used as a template during translation to synthesize proteins.