Cambridge IGCSE Biology practice

Paper 3 structured question: Monohybrid inheritance

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Paper

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Topic

Monohybrid inheritance

Exam-style question

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Paper 3Theory (Core)1 marks

Genetics and inheritance

Description

An organism has two alleles for each gene. When these alleles are identical, the organism is described as homozygous for that gene.

a
State What is meant by homozygous?
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Paper 3Theory (Core)1 marks

Description

Each gene in an organism has two alleles, one from each parent. When these alleles are the same, the organism is homozygous for that gene.

a
Identify From where does an organism inherit the two alleles for a gene?
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