Will be produced. [5]
5
S7 The diagram shows a pedigree chart for a family in which some of the members are red-green
colour-blind,
1
2
HIGHEST QUALITY GRAPHITE LI
8
9
10
3
4
6
7
5
16
17
18
19
12
15
20
13
14
normal male
colour-blind female
colour-blind male
()
normal female
0610142 je mali
QB C
a
b
Explain how the pedigree supports the idea that red-green colour blindness is a
urte [2]
Using the symbols XB for the allele for normal vision, and Xb for the allele for colour blindness, arru
state the genotypes of each of the following individuals. If there is more than one possible
genotype, write down both of them.
2, 3, 11, 13, 19
15
If individuals 3 and 4 have another son, what is the probability that he will be colour-blind?
Use a genetic diagram to explain your answer.
(5)
Explain why a colour-blind man cannot pass on this condition to his son.
[2]
с
d​

ucd e e. rr. t t t t t t. to

that would be called plucking : )

explanation:

''plucking, also referred to as quarrying, is a glacial phenomenon that is responsible for the erosion and transportation of individual pieces of bedrock, especially large "joint blocks". as a glacier moves down a valley, friction causes the basal ice of the glacier to melt and infiltrate joints (cracks) in the bedrock."

the correct answer is - d. china has a large and growing population.

the fact that china has a large (the biggest) population, and it is still growing, doesn't hinder the agriculture production in the country. in fact, it can for increased production in the agriculture, since there's more labor force, as well the sheer mass of people produces lots of scientists that come up with new inventions as to how to improve this sector. nice example is the inner mongolia region in china, in general dominated by the gobi desert, but few scientist came up with a nice idea as to how to make the region productive by using plants that are very resistant to droughts, so lots of people have been employed, and the region is becoming greener and greener each year, and the production of food in this region is also increasing.