can you think of 5 differences (variations) between people that are inherited? do now!
DESCRIPTION
Continuous variationTRANSCRIPT
Can you think of 5 differences (variations) between people that are
inherited?
Do now!
Last lesson
• Variation
Continuous variation
• Either many genes are involved in that characteristic
• Or the genes are operating with environmental effects too
Continuous variation
1.5
2
2.5
3
3.5
4
4.5
5
5.5
6
5 5.5 6 6.5 7 7.5 8 8.5 9
• Either many genes are involved in that characteristic
• Or the genes are operating with environmental effects too
• Body mass• Milk yield• Hand size
Continuous variation
Discontinuous variation
• A single gene gives the characteristic
• The gene operates with no environmental effects
Discontinuous variation
• A single gene gives the characteristic
• The gene operates with no environmental effects
Discontinuous variation
Tongue rolling
Blood group
Eye colour
Sex
Stick the sheet in.
Today’s lesson
• Understand the difference between species, breeds, varieties
Read pages 6 to 9 and write 10 multiple choice questions (each with 4 possible answers) on the subject of species, breeds, varieties, selective
breeding and cross-breeding
Multiple choice questions
Which salt is produced when nitric acid is added to lithium hydroxide?
Which salt is produced when nitric acid is added to lithium hydroxide?A. Lithium nitride
Close, but incorrect
Which salt is produced when nitric acid is added to lithium hydroxide?A. Lithium nitrideB. Nitric oxide
Incorrect, but sounds “scientific”
Which salt is produced when nitric acid is added to lithium hydroxide?A. Lithium nitrideB. Nitric oxideC. Lithium nitrate
Correct!
Which salt is produced when nitric acid is added to lithium hydroxide?A. Lithium nitrideB. Nitric oxideC. Lithium nitrateD. Marmite
Humorous!
Read pages 6 to 9 and write 10 multiple choice questions (each with 4 possible answers) on the subject of species, breeds, varieties, selective
breeding and cross-breeding