Genetic Variation

Question 1

Components of DNA nucleotides

Answer 1

Deoxyribose, a phosphate group and one of the organic bases adenine, cytosine, guanine or thymine.

Question 2

Components of RNA nucleotides

Answer 2

Ribose, a phosphate group and one of the organic bases adenine, cytosine, guanine or uracil

Question 3

What does DNA do?

Answer 3

Holds genetic information

Question 4

What does RNA do?

Answer 4

Transfers genetic info from DNA to ribosomes made of rRNA and proteins.

Question 5

Which bases are classified as purine?

Answer 5

Adenine and Guanine

Question 6

What structure does a pyrimidine have?

Answer 6

Single ring structure

Question 7

What structure does purines have?

Answer 7

Double ringed structure

Question 8

What bases are pyrimidines?

Answer 8

Thymine, cytosine and uracil

Question 9

How do nucleotides join together?

Answer 9

Phosphodiester bonds in a condensation reaction

Question 10

The structure of DNA

Answer 10

A double helix composed of two polynucleotides joined together by hydrogen bonds between complementary bases.

Question 11

The structure of RNA.

Answer 11

Relatively short polynucleotide chain