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Biology Past Questions and Answers

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Waec Biology Questions

Question 1561:

Which of the following statements about chromosomes is correct?

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A All the chromosomes of a species are the same in shape
B The bear number present in a species is constant
C They are neatly arranged in the eytoplasm
D They bear ribosomes on their outer membranes

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Question 1562:

A small stem from a hibiscus plant was placed in a nutrieent medium, and it developed into a new plant. The new plant was reproduced

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A Asexually with different genotype from the parent plant
B Sexually with a different genotype from the parent plant
C Asexually with the same genotype as the parent plant
D Sexually with the same genotype as the parent plant

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Question 1563:

The F1 generation of a cross between a red cock and white hen were all red because the gene for the

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A White colour did not segregate
B Red colour was dominant
C White colour was dominant
D Red colour was recessive

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Question 1564:

Which of the following diseases can be inherited?

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A Pneumonia
B AIDS
C Sickle cell anaemia
D Goitre

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Question 1565:

In dihybrid inheritance, Mendel considered

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A A pair of contrasting characters
B Two pairs of contrasting characters
C Three pairs of contrasting characters
D Four pairs of contrasting characters

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