Bio Quiz On Dna

Question 1

How many metres of dna are in each cell

Answer 1

2 metres

Question 2

What does dna coil around

Answer 2

Histone protiens

Question 3

What’s a chromatid

Answer 3

Compacted DNA

Question 4

What are the 3 components of dna

Answer 4

Phosphate group
Nitrogenous bases
Deoxyribose sugar

Question 5

What bonds connect the sugar phosphate backbone

Answer 5

Phosphodiester bonds

Question 6

What does 5 prime and 3 prime end with

Answer 6

5 prime ends with phosphate
3 primes ends in sugar and hydroxy group

Question 7

What two bases are pyrimindes

Answer 7

Thymine and cytosine

Question 8

What two bases are purines

Answer 8

Adenine and guanine

Question 9

What are purines

Answer 9

Double ring structure

Question 10

What’s a pryimindes

Answer 10

Single ring structure

Question 11

What is à polynucleotide

Answer 11

Multiple nucleotide bonded together

Question 12

How many hydrogen bonds bind a and t

Answer 12

2

Question 13

How many hydrogen bonds bind c and g

Answer 13

3

Question 14

How does the double helix run

Answer 14

Anti parallel ( each strand has a 5 prime and 3 prime end)

Question 15

What does 3 prime end with

Answer 15

Hydroxyl group