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2406
Which of the following traits in humans can be affected by environmental factors?
  • A. skin colour
  • B. eye colour
  • C. baldness
  • D. tongue-rolling
View Answer & Discuss (3) WAEC 2004
2407

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
View Answer & Discuss (14) WAEC 2004
2408
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,
View Answer & Discuss WAEC 2004
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2409
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
View Answer & Discuss (1) WAEC 2004
2410
Which of the following organisms exhibit division of labour?
  • A. houseflies
  • B. butterflies
  • C. cockroaches
  • D. termites
View Answer & Discuss (11) WAEC 2004
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