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2007 - JAMB Biology Past Questions and Answers - page 3

21
An accurate identification of a rapist can be carried out by conducting a
A
RNA analysis
B
DNA analysis
C
blood group text
D
behavioural traits test
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22
which of the following is true of cloning?
A
it is welcomed as an ethical and morally sound science
B
only one cell of the original organism is needed to initiate the process
C
the clone is similar to but not exactly like the original organism
D
it involves the asexual multiplication of the tissues of the original organism
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23
An example of a sex linked trait is the
A
ability to grow long hair in females
B
colour of the skin in humans
C
ability to roll the tongue
D
possession of facial hair in adult humans
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24
Use the diagram above to answer this question. The type of protective adaptation exhibited by the animal is
A
disruptive colouration
B
flash colouration
C
countershading colouration
D
warning colouration
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25
Use the diagram above to answer this question. The structure labelled l is
A
photosensitive
B
radiosensitive
C
chemoreceptive
D
tactile
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26
Use the diagram above to answer this question.Insulin is produced by the endocrine organ labelled
A
IV
B
III
C
II
D
I
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27
Use the diagram above to answer this question. The function of the structure labelled l is to
A
stimulate the development of secondary sexual characters
B
prepare the body for any emergency
C
maintain proper glucose concentration in the blood
D
regulate the activities of other endocrine glands
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28
Use the diagram above to answer this question.Oxygenated blood is pumped to the entire body from the part labelled
A
IV
B
lll
C
ll
D
l
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29
Use the diagram above to answer this question. The part labelled l is the
A
pulmonary artery
B
vena cava
C
aorta
D
bicuspid valve
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30
Use the diagram above to answer this question.The part labelled lV is responsible for
A
osmoregulation
B
respiration
C
ingestion
D
locomotion
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