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WAEC Biology 2006 Question 57

Question 57

Mendelian Inheritance

If a pure breeding white cat (homozygous dominant) mates with a pure breeding black cat (recessive), what would be the fur colour of the F1 generation?

  1. A.Homozygous white
  2. B.Homozygous black
  3. C.Heterozygous white
  4. D.Heterozygous black
Show the answer and explanation

Answer: C (Heterozygous white)

Explanation

WW × ww gives only Ww kittens: heterozygous, and white because white is dominant.