Selective breeding

Question 1

Think of deciding and controlling what happens

What is selective breeding?

Answer 1

• When animals/ plants with desired charcteristics are selected to reproduce togther
• To make offspring with desired charcteristics

Question 2

Think what is wanted

Describe how the process of selective breeding can be used in tomatoe plants or any other kind of plants.

Answer 2

• Choose the tomatoes (plants) with the desired (best) charcteristics
• Breed them togther
• Once breed let the plants grow then repeate the proccess with the tomatoes (plants) with the most desribale (best) yield
• Keep repeating the proccess to increase the average yield

Question 3

Give three examples of traits (charcteristics) that might be selectivly bred in plants or animals?

Answer 3

• Improved yield of meat or milk
• Drought resistence
• Improved yield of fruits, grains and vegtables

Also for animals the size, fur colour and aggression
Also for plants the colour of the flower

Question 4

Think about control and the effect it has

What effect does selective breeding usally have on a population?

Answer 4

• Reducues varioution in a population

Question 5

Think similar but not the same

What is inbreeding?

Answer 5

• Process where closely related individuals are mated togther

Question 6

Give three problems with inbreeding.

Answer 6

• Reduces gene pool
• Rare inherited disease are more likely to be expressed
• Population is more at risk of disease