Shape And Structure

Question 0

Where are the nitrogen bases in the double helix?

Answer 0

In the middle, the rungs

Question 1

What is double helix

Answer 1

Two spirals wound together but joined in middle

Question 2

Where are sugar and phosphate in the double helix?

Answer 2

On the outside, the sides

Question 3

DNA structure

Answer 3

A polymer of 1000’s of nucleotide monomers

Question 4

Double helix

Answer 4

A double strand of covalent my bonded nucleotides in twisted ladder shape

Question 5

Nucleotide

Answer 5

Individual unit of a nucleic acid

Question 6

Three parts if a nucleotide

Answer 6

1. 5-carbon sugar- deoxyribose
2. Phosphate group
3. Nitrogen-containing base

Question 7

Four nitrogen containing bases

Answer 7

Adenine, thymine, guanine, cytosine

Question 8

Purines

Answer 8

Double ringed

Adenine and guanine

Question 9

Pyrimidines

Answer 9

Single ringed

Thymine and cytosine

Question 10

Why is the phosphate group important?

Answer 10

Links the sugar on one nucleotide with the phosphate of the next nucleotide to make a polynucleotide

Question 11

How are nucleotides connected?

Answer 11

Covalent bonds

Question 12

How are bases held together?

Answer 12

Weak hydrogen bonds

Question 13

How many hydrogen bonds between a & t

Answer 13

2

Question 14

How many hydrogen bonds between c &g

Answer 14

3

Question 15

What is anti-parallel?

Answer 15

Sugar and phosphate

Question 16

What is the base pairing function?

Answer 16

Stores, copies, and transmits genetic information