TRANSCRIPTION Flashcards
1
Q
STEP 1
A
- Hydrogen bonds (between DNA bases) break;
Ignore DNA helicase.
Reject hydrolysing hydrogen bonds.
2
Q
STEP 2
A
- (Only) one DNA strand acts as a template;
3
Q
STEP 3
A
- (Free) RNA nucleotides align by complementary base pairing;
For ‘align by complementary base pairing’, accept ‘align to complementary bases’ or ‘align by base pairing’.
4
Q
STEP 4
A
- (In RNA) Uracil base pairs with adenine (on DNA) OR
(In RNA) Uracil is used in place of thymine;
Do not credit use of letters alone for bases.
5
Q
STEP 5
A
- RNA polymerase joins (adjacent RNA) nucleotides;
Reject suggestions that RNA polymerase forms hydrogen bonds or joins complementary bases.
6
Q
STEP 6
A
- (By) phosphodiester bonds (between adjacent nucleotides);