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Biology Past Questions and Answers

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Waec Biology Questions

Question 1321:

An example of a saprophytic relationship is a / an

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A Vulture feeding on decaying meat
B Mushroom growing on decaying vegetation
C Boy eating stale bread
D Earthworm feeding on decaying vegetation.

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Question 1322:

In artificial selection, individuals without desirable traits may be prevented from mating by

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A Outbreeding
B Sterilization
C Inbreeding
D Genetic engineering

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Question 1323:

In a family of eight (8) all the children are girls Which of the following reasons correctly explains this?

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A The woman cannot produce male children
B The man has a low sperm count
C The Y component of the manâ€™s sex chromosome was always involved
D The X component of the manâ€™s sex chromosome was always involved.

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Question 1324:

Which of the following statements is correct about the structure of a chromosome? A chromosome consists of

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A Two chromatids joined at the centromere
B Two chromatids joined at the spindle
C Two chromatin threads joined at the centrioles
D Thread-like structures not joined together

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Question 1325:

Mr. Andrew, his wife and child belong to blood groups A, B and O respectively. The genotypes of both parents are

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A I^A I^O and I^B I^B
B I^A I^A and I^B I^B
C I^A I^B and I^A I^O
D I^A I^O and I^B I^O.

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