exam 2

Question 1

central dogma

Answer 1

dna — transcription — RNA — translation —- protein

Question 2

coding strand

Answer 2

5’ - 3’

Question 3

template strand

Answer 3

3’ - 5’

Question 4

mRNA

Answer 4

5’ - 3’

Question 5

palindromic sequence

Answer 5

inverted sequence

Question 6

new nucleotide binds to

Answer 6

3’ end

Question 7

purines

Answer 7

A, G

Question 8

pyrimidines

Answer 8

T, C, U

Question 9

leading strand

Answer 9

synthesis towards the fork

Question 10

lagging strand

Answer 10

synthesis away from the fork

Question 11

sticky ends

Answer 11

cut between base pairs mentioned

Question 12

how RNA nucleotides differ from DNA

Answer 12

RNA uses ribose instead of deoxyribose, uses uracil instead of thymine

Question 13

which are larger, purines or pyrimidines

Answer 13

purines

Question 14

-35 region

Answer 14

TTGACA

Question 15

-10 region

Answer 15

TATAAT

Question 16

transcription start site

Answer 16

AATCGTGCAT - will start wherever the mRNA starts and is 10 nucleotides

Question 17

shine-dalgarno

Answer 17

GAGG

Question 18

translation start codon

Answer 18

ATG

Question 19

substitution mutation

Answer 19

one nucleotide is replaced by another

Question 20

lac operon

Answer 20

LacI LacP LacO LacZ LacY LacA