Cambridge IGCSE Biology practice

Paper 3 structured question: Monohybrid inheritance

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Paper

Marks

Topic

Monohybrid inheritance

Exam-style question

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Paper 3Theory (Core)2 marks

Genetics and inheritance

Description

A dominant allele is one that is expressed in the phenotype if present in the genotype.

a
Describe what happens to the phenotype if a dominant allele is present in the genotype?
Your answer
Aim for approximately 2 distinct marking points.
[2]

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Paper 3Theory (Core)1 marks

Description

A dominant allele is one that is expressed in the phenotype if present in the genotype.

a
State what is meant by a dominant allele?
Your answer
Aim for approximately 1 distinct marking point.
[1]