Variation And Inheritance

Question 0

What do genes control?

Answer 0

Genes control the development of characteristics

Question 1

Where are genes found?

Answer 1

In the chromosomes

Question 2

What type of reproduction produces genetically identical offspring?

Answer 2

Asexual reproduction, because there is only one parent

Question 3

What type of reproduction leads to variation in the offspring?

Answer 3

Sexual reproduction

Question 4

What are the two factors hat control some of our characteristics?

Answer 4

The genes we inherit and environmental causes

Question 5

Which environmental factors can change a plant’s appearance?

Answer 5

Availability of light, nutrients and space

Question 6

Which sex chromosomes are found in human males?

Answer 6

X and Y

Question 7

What do we now call Mendel’s units of inheritance?

Answer 7

Genes

Question 8

How many bases form the code for one amino acid?

Answer 8

Three bases

Question 9

Which cells are affected by sickle-cell anaemia?

Answer 9

Red blood cells

Question 10

What is a gene probe?

Answer 10

A chemical probe that will bind to a specific gene

Question 11

What is embryo screening?

Answer 11

Tests are carried out on the embryo to diagnose possible disorders