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Answer ALL questions. Write your answers in the spaces provided.
Some questions must be answered with a cross in a box . If you change your mind about an
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answer, put a line through the box and then mark your new answer with a cross .
1 (a) Genes control natural hair colour in humans.
(i) Which term describes the differences in hair colour?
(1)
A variation
B tissue culture
C elongation
D fertilisation
(ii) Genes are found on chromosomes.
Name the part of the human cell where chromosomes are found.
(1)
. . . . . . . . . . . .. .. .. .. .. .. .. .. .. .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ............................................................................................................................................ ................ . . . . . . . . . . . . . . . . . . . .
(b) The hair colour of 24 students was recorded.
Figure 1 shows the results.
brown black blonde black blonde brown
black black red brown brown black
blonde brown black brown brown blonde
brown blonde blonde black brown brown
Figure 1
(i) Complete Figure 2 to show the tally and the total for brown hair.
(2)
hair colour
black blonde brown red
total = 7 total = 6 total = total = 1
Figure 2
2
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(ii) Complete the bar chart to show the totals in Figure 2 and label the x‑axis.
(3)
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12
10
8
number of
students 6
4
2
0
black ......................... ......................... .........................
. . . . . . . . . . . . . . .............................................................................................
(Total for Question 1 = 7 marks)
3
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Answer ALL questions. Write your answers in the spaces provided.
Some questions must be answered with a cross in a box . If you change your mind about an
DO NOT WRITE IN THIS AREA DO NOT WRITE IN THIS AREA DO NOT WRITE IN THIS AREA
answer, put a line through the box and then mark your new answer with a cross .
1 (a) Genes control natural hair colour in humans.
(i) Which term describes the differences in hair colour?
(1)
A variation
B tissue culture
C elongation
D fertilisation
(ii) Genes are found on chromosomes.
Name the part of the human cell where chromosomes are found.
(1)
. . . . . . . . . . . .. .. .. .. .. .. .. .. .. .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ............................................................................................................................................ ................ . . . . . . . . . . . . . . . . . . . .
(b) The hair colour of 24 students was recorded.
Figure 1 shows the results.
brown black blonde black blonde brown
black black red brown brown black
blonde brown black brown brown blonde
brown blonde blonde black brown brown
Figure 1
(i) Complete Figure 2 to show the tally and the total for brown hair.
(2)
hair colour
black blonde brown red
total = 7 total = 6 total = total = 1
Figure 2
2
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, tyrionpapers.com
(ii) Complete the bar chart to show the totals in Figure 2 and label the x‑axis.
(3)
DO NOT WRITE IN THIS AREA DO NOT WRITE IN THIS AREA DO NOT WRITE IN THIS AREA
12
10
8
number of
students 6
4
2
0
black ......................... ......................... .........................
. . . . . . . . . . . . . . .............................................................................................
(Total for Question 1 = 7 marks)
3
*P78699RRA0324* for more: tyrionpapers.com
Turn over
