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WAEC Agricultural Science 2014 Question 24

Question 24

Basic Genetics

The offspring which will result from a cross between heterozygous and homozygous dominant plants will be

  1. A.100% heterozygous.
  2. B.70 % heterozygous.
  3. C.50% heterozygous.
  4. D.20% heterozygous.
Show the answer and explanation

Answer: C (50% heterozygous.)

Explanation

Tt × TT gives TT, Tt, TT, Tt: half are heterozygous.