Variation

Question 1

What is an allele

Answer 1

An allele is a different form of genes

Question 2

What is variation?

Answer 2

Variation is the different between each other ;
Eye colour
Blood group
Height
Hand size

Question 3

What type of gene is sickle cell anaemia?

Answer 3

Recessive

Question 4

What genes have male and females got?

Answer 4

Males are XY

Females are XX

Question 5

Name some continuous variations

Answer 5

Weight
Height
Foot Length
Finger length
Etc

Question 6

Name some discontinuous variations

Answer 6

Blood group
Eye colour
Shoe size
Hair colour
Etc

Question 7

Where are chromosomes located

Answer 7

In the nuclei

Question 8

How do the chromosomes of a sperm cell differ from other cells

Answer 8

Sperm cells have 23 genes whereas other genes have 46

Question 9

Is weight genetic or environmental?

Answer 9

It is mostly environmental but some is genetic

Question 10

How are non-identical twins produced?

Answer 10

They are produced when two sperm cells fertilise two different egg cells

Question 11

Is brown eye colour dominant or recessive?

Answer 11

Dominant

Question 12

Is blue eye colour dominant or recessive?

Answer 12

Recessive

Question 13

What shape is DNA

Answer 13

A double helix shape

Question 14

What is a genotype

Answer 14

The genetic composition of an individual organism

Question 15

Why are cows bred

Answer 15

To increase productivity, produce more meat, more milk for longer or to cost less in vet’s fees