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The illustration above is a genetic diagram. Study it and answer the question What is the...

Biology
WAEC 2023

The illustration above is a genetic diagram. Study it and answer the question

What is the genotypic ratio

  • A. 1:1
  • B. 4:0
  • C. 1:3
  • D. 1:2:1
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Correct Answer: Option A
Explanation

The genotypic ratio is the ratio of the number of individuals with different genotypes. From the diagram, if you do the crossing I = EE, II = EE, III =  Ee, IV = Ee i.e  2 EE and 2 Ee

⇒ Genotypic ratio will be 2 : 2  which is equivalent to 1:1.


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