Question

The processes by which DNA forms mRNA and mRNA forms protein are respectively

• A.
  Replication and translation
• B.
  Transcription and translation
• C.
  Translation and transcription
• D.
  Transcription and replication

Answer 1

The correct option is B

Transcription and translation
Gene expression
The process by which the information encoded in a gene is used for directing the synthesis of a protein molecule is called gene expression.

Transcription
Transcription refers to the process of copying information from one strand of DNA to form mRNA.

Translation
The process of synthesising a polypeptide chain based on the information from mRNA is called translation.

DNA replication
DNA replication is the process by which a double-stranded DNA molecule is copied to produce two identical daughter DNA molecules. It is not part of gene expression.