Biology · The control of gene expression

Gene technologies allow the study and alteration of gene function

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Question 1 of 35 · 3 parts, 6 marks0:00

Genetic fingerprints were produced for a mother, her child, and two men (Man 1 and Man 2) who could be the child's biological father. Table 4 shows which bands (A to F) were present. Every band in a child must be present in one of its biological parents.

Band	Mother	Child	Man 1	Man 2
A	Yes	Yes	No	Yes
B	No	Yes	No	Yes
C	Yes	No	Yes	No
D	No	Yes	Yes	Yes
E	No	No	Yes	No
F	Yes	Yes	No	No

(a)
State what must be true about every band in the child's fingerprint.
[1]
(b)
Using Table 4, deduce which bands in the child must have come from the biological father.
[2]
(c)
Deduce which man is the biological father. Justify your answer using Table 4.
[3]

type on the lines, or write it on paper

Band	Mother	Child	Man 1	Man 2
A	Yes	Yes	No	Yes
B	No	Yes	No	Yes
C	Yes	No	Yes	No
D	No	Yes	Yes	Yes
E	No	No	Yes	No
F	Yes	Yes	No	No

Band	Mother	Child	Man 1	Man 2
A	Yes	Yes	No	Yes
B	No	Yes	No	Yes
C	Yes	No	Yes	No
D	No	Yes	Yes	Yes
E	No	No	Yes	No
F	Yes	Yes	No	No

Band	Mother	Child	Man 1	Man 2
A	Yes	Yes	No	Yes
B	No	Yes	No	Yes
C	Yes	No	Yes	No
D	No	Yes	Yes	Yes
E	No	No	Yes	No
F	Yes	Yes	No	No