3. Control of Gene Expression - Translation of DNA into RNA Flashcards
1
Q
- What does RNA polymerase do as it winds along the DNA?
A
It unwinds the double helix
2
Q
- What does complementary base pairing match?
A
RNA nucleotides to the double helix
DNA:RNA (A:U, T:A, G:C, C:G)
ensures that the RNA molecule has a copy of the code
3
Q
- What is the primary transcript synthesised by?
A
RNA polymerase bonding RNA nucleotides to the ribose (3’) end of the forming RNA strand (it forms a covalent bond between the phosphate of the nucleotide being added and the ribose of the 3’ end of RNA)
4
Q
- What are introns?
A
non-coding regions of genes which are removed during RNA splicing
5
Q
- What are exons?
A
Coding regions of DNA which are joined together to form the mature transcript