Storing and Using Genetic information

Question 1

What is a genotype?

Answer 1

The genetic code

Question 2

What is a phenotype?

Answer 2

Outward/look of organism

Question 3

What is the sugar used in RNA?

Answer 3

Ribose

Question 4

What is the sugar found in DNA?

Answer 4

Deoxyribose

Question 5

What is the structure formed by DNA?

Answer 5

Double-helix structure

Question 6

How many bases for every full turn of the helix?

Answer 6

10

Question 7

What does bi-directional mean?

Answer 7

Strands grow in 2 different directions

Question 8

What does semi-conservative mean?

Answer 8

One half of each molecule is old, half is new

Question 9

What are single pieces of DNA called?

Answer 9

Chromosomes

Question 10

What is chromatin?

Answer 10

Name given to DNA, proteins and RNA that package DNA within nucleus

Question 11

What are exons?

Answer 11

Coding regions

Question 12

What are non-coding regions called?

Answer 12

Introns

Question 13

What is the wobble position?

Answer 13

3rd base of the codon

Question 14

What are the only two amino acids to be coded by just one codon?

Answer 14

Methionine and tryptophan

Question 15

Where are the binding sites located?

Answer 15

Minor groove

Question 16

What is glutamate substituted by to form sickle cell haemoglobin?

Answer 16

Valine

Question 17

What is mRNA transcribed from?

Answer 17

DNA

Question 18

What is the function of mRNA?

Answer 18

Carries information for protein synthesis

Question 19

When are the introns spliced away?

Answer 19

Before mRNA leaves the nucleus

Question 20

What is the function of the tRNA?

Answer 20

To translate mRNA into the amino acid sequence