Use the diagram above to answer this question. What are the genotypes of the parents if the gene for skin colour is H?

Assessment: WAEC SSCE - Biology - 2015 (Objective) Subject: Biology

Question 1 Report


Use the diagram above to answer this question.

What are the genotypes of the parents if the gene for skin colour is H?

Answer Details
The given diagram shows a cross between a Spotted Leopard and a Black Panther. The gene for skin color is represented by the letter H. From the diagram, we can see that all the offspring have the genotype Hh for the skin color gene. This means that one parent must have the genotype Hh and the other parent must have the genotype hh. Since the Black Panther parent has the homozygous recessive genotype (hh), it must have inherited one h allele from each of its parents. Therefore, the Spotted Leopard parent must have the genotype Hh, with one H allele inherited from one parent and one h allele from the other parent. So, the answer is: Spotted Leopard Hh Black Panther hh.

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