Dna

Question 1

Equal amount of ….

Answer 1

Both base pairs

Question 2

What are two poly nucleotide strands

Answer 2

Anti parallel because two of them would twist to form DNA helix

Question 3

Difference between RNA and DNA

Answer 3

Ribose sugar
Uracil binds with adenine instead of thymine
Singly poly nucleotide not double
Much shorter than DNA strand

Question 4

During DNA replication the active site of DNA polymerase is only specific to what

Answer 4

3’ end of the newly forming nucleotide

Question 5

What was the samples left for

Answer 5

To divide ( undergo dna replication )

Question 6

After each stage what did the tubes look like

Answer 6

First tube - band lowest (just heavy dna 15,15) second tube - band slightly higher as lighter (15n 14n , 14n 15n) - hybrid
Third tube - two bands one band like the band from the second tube (15n 14n) and one band very much to the top (14n 14n) lighter less denser

Question 7

What would tubes look like for fully conservative and dispersive

Answer 7

Fully- first band low and then two bands one low and one high ( same for third)
Dispersive - band get higher as dna would of got lighter as it got more dispersive