Year 8 inheritance
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Items in this lesson
Slide 1 - Slide
Slide 2 - Slide
How many chromosomes does a sperm cell have?
A
21
B
22
C
23
D
46
Slide 3 - Quiz
What are genes?
A
Parts of a cell.
B
Parts of a sex cell.
C
Sections of alleles that control characteristics.
D
Sections of chromosomes that control characteristics.
Slide 4 - Quiz
What are different versions of the same genes known as?
A
Alleles
B
Alkali
C
Aleles
D
Alkaline
Slide 5 - Quiz
Slide 6 - Slide
Slide 7 - Slide
Dominant alleles need ____ copy/copies to show.
A
4
B
3
C
2
D
1
Slide 8 - Quiz
Which eye colour is dominant blue or brown?
A
Blue
B
Brown
Slide 9 - Quiz
How many copies of recessive alleles do you need?
A
1
B
2
C
3
D
4
Slide 10 - Quiz
Slide 11 - Slide
Brown is dominant, which of these would have brown eyes?
A
BB
B
Bb
C
bB
D
bb
Slide 12 - Quiz
Blue is recessive, which of these would have brown eyes?
A
BB
B
Bb
C
bB
D
bb
Slide 13 - Quiz
The allele Y causes yellow petals
and y causes green petals.
A flower has Yy, explain what colour the petals are.
and y causes green petals.
A flower has Yy, explain what colour the petals are.
Slide 14 - Mind map
Slide 15 - Slide
Slide 16 - Slide
Give example of variation in one type of speicies
Slide 17 - Open question
What is adaptation?
Give examples
Give examples
Slide 18 - Mind map
How have arctic foxes adapted to their habitat?
