T2L6 Structure of DNA and RNA

Question 1

Name the 3 components of a DNA nucleotide

Answer 1

Deoxyribose Sugar
Phosphate Group
Nitrogenous base

Question 2

Name the 4 bases in DNA

Answer 2

Adenine
Thymine
Guanine
Cytosine

Question 3

How many strands make up DNA and what shape do they form?

Answer 3

2 strands into a double helix

Question 4

Describe the bonding between hydrogen bases in DNA

Answer 4

A-T forms 2 hydrogen bonds
C-G forms 3 hydrogen bonds

Question 5

Describe bonds form between nucleotides in the same DNA strand

Answer 5

Phosphodiester bonds between the the deoxyribose of one nucleotide and the phosphate of another

Question 6

Name the 3 components of an RNA nucleotide

Answer 6

Ribose sugar
Phosphate group
Nitrogenous base

Question 7

What is the general term for the sugars in DNA and RNA that have 5 sugars

Answer 7

Pentose sugar

Question 8

Sort and Classify the DNA and RNA bases into 2 categories. Which are bigger?

Answer 8

Pyrimidines - C,T+U
Purines - A+G

Purines (not the big pyramids)

Question 9

What is the bonding between pyrimidines and purines?

Answer 9

A pyrimidine always bonds with a purine

Question 10

Name the 4 bases in RNA

Answer 10

Adenine
Cytosine
Guanine
Uracil

Question 11

How many strands in RNA

Answer 11

1 - single stranded

Question 12

Describe bonds form between nucleotides in the same RNA strand

Answer 12

Phosphodiester bonds between the the ribose of one nucleotide and the phosphate of another

Question 13

How many hydrogen bonds between Uracil and Adenine in RNA

Answer 13

2