D1.2 Protein Synthesis

Question 1

Three forms of RNA

Answer 1

• mRNA: messenger RNA, made as a strand that is complementary to one strand of the DNA molecule (template strand). It is a copy of the other DNA strand, other than Uracil.
• rRNA: ribosomal RNA and is found in ribosomes - decodes mRNA into amino acids.
• tRNA: transfer RNA carries amino acids to the ribosomes where they are bonded together to form polypeptides (long branch of amino acids linked by peptide bonds).

Question 2

First stage of gene expression (process of using gene information to create a protein)

Answer 2

Transcription:
- Production of mRNA using DNA as a template.