Paper 2 H - SAMPLE SET 1 Q5
5) Humans can use different methods to produce animals and plants with desired characteristics.
Figure 5 shows some different breeds of horse.
Figure 5 shows some different breeds of horse.
5.1) All breeds of horse are of the same species.
Suggest what you could do to show this. [2 marks]
5.2) Horse racing is an ancient sport.
Selective breeding has been used for centuries to produce racehorses.
Describe the steps involved in selective breeding to produce a racehorse. [3 marks]
Another way of producing organisms with desired characteristics is genetic engineering.
Bt cotton is a variety of cotton that has been genetically engineered to produce a poison.
The poison kills several different species of insect that feed on cotton plants.
The poison is naturally produced by a soil bacterium called Bacillus thuringiensis.
5.3) Describe how cotton plants can be genetically engineered to produce the Bt poison. [3 marks]
5.4) Describe the advantages and disadvantages of growing Bt cotton. [4 marks]
(Total for Question 5 = 12 marks)
Suggest what you could do to show this. [2 marks]
5.2) Horse racing is an ancient sport.
Selective breeding has been used for centuries to produce racehorses.
Describe the steps involved in selective breeding to produce a racehorse. [3 marks]
Another way of producing organisms with desired characteristics is genetic engineering.
Bt cotton is a variety of cotton that has been genetically engineered to produce a poison.
The poison kills several different species of insect that feed on cotton plants.
The poison is naturally produced by a soil bacterium called Bacillus thuringiensis.
5.3) Describe how cotton plants can be genetically engineered to produce the Bt poison. [3 marks]
5.4) Describe the advantages and disadvantages of growing Bt cotton. [4 marks]
(Total for Question 5 = 12 marks)