DNA, Genes and Chromosomes

Question 1

Where are chromosomes found?

Answer 1

The nucleus

Question 2

What are chromosomes?

Answer 2

Long lengths of DNA coiled around proteins

Question 3

How many chromosomes do human cells have?

Answer 3

23 pairs or 46 individual

Question 4

Are human body cells haploid or diploid?

Answer 4

Diploid

Question 5

What is the difference between haploid and diploid cells?

Answer 5

Diploid have double/two copies of each chromosome, Haploid has half

Question 6

What is the difference between male and female chromosomes?

Answer 6

Male are XY, Females are XX

Question 7

What are genes?

Answer 7

Short sections of DNA that code for particular proteins

Question 8

What does all of an organisms DNA make up?

Answer 8

Genome

Question 9

What do proteins determine?

Answer 9

Inherited characteristics e.g. eye colour

Question 10

What are alleles?

Answer 10

Different versions of the same gene

Question 11

What do we call the structure of DNA?

Answer 11

Double helix

Question 12

What holds the two strands of DNA together?

Answer 12

Bases

Question 13

What are the 4 DNA bases?

Answer 13

Adenine, Cytosine, Guanine, Thymine

Question 14

Which bases are complimentary to each other?

Answer 14

AT and CG