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Waec Biology 2004 Past Questions and Answers

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Waec 2004 Biology Past Questions

Question 56:


Heterozygous tall plants were crossed with pure-breeding dwarf plants of the same species. What were the approximate percentages of the offspring?

A. 100% tall 0% dwarf
B. 75% tall 25% dwarf
C. 50% tall 50% dwarf
D. 25% tall 75% dwarf


Question 57:


In the F1 generation of Mendel’s experiment obtained by crossing pea plants of long stems with those of short stems,
What was his observation?

A. Some were short while others were long
B. All were long
C. Half of them were long while half were short
D. Three-quarters were long while one quarter were short,


Question 58:


Which of the following statements is correct about the chromosomes in the gametes? At the end of the second
meiotic division

A. Each gamete contains only paternal hereditary information
B. Chromosomes contain a random mixture of paternal and maternal chromosomes.
C. Chromosomes in the four gamete cells are diploid in number
D. Chromosomes contain only maternal hereditary information


Question 59:


Which of the following organisms exhibit division of labour?

A. Houseflies
B. Butterflies
C. Cockroaches
D. Termites


Question 60:


Which of the following is not included in the theory of natural selection?

A. Struggle for existence
B. Offspring show variation
C. Inheritance of adaptive structures
D. Disappearance of functionless organs






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