DNA structure

Question 1

What the three elements of a nucleotide in RNA?

Answer 1

Phosphate/phosphoric acid
Ribose pentose sugar
Organic nitrogenous base

Question 2

What bonds the phosphate and pentose sugar, which make up the backbone of DNA?

Answer 2

A phosphodiester bond, formed

by a condensation reaction

Question 3

What is the chain of a strand of DNA called?

Answer 3

Polynucleotide

Question 4

What is the structure of DNA?

Answer 4

Double helix

Question 5

What bonds the two base pairs from each strand of DNA?

Answer 5

Hydrogen bond

Question 6

What are the bases for DNA?

Answer 6

Thymine
Adenine
Cytosine
Guanine

Question 7

What are the bases for RNA?

Answer 7

Uracil
Adenine
Cytosine
Guanine

Question 8

Which bases are complementary for DNA?

Answer 8

A and T

C and G

Question 9

Which bases are complimentary for RNA?

Answer 9

A and U

C and G

Question 10

What the three elements of a nucleotide in DNA?

Answer 10

Phosphate/phosphoric acid
Deoxyribose pentose sugar
Organic nitrogenous base

Question 11

What bond holds the two strands of DNA (polynucleotides) together

Answer 11

A hydrogen bond