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)1 marks

Genetics and inheritance

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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Paper 3Theory (Core)1 marks

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?
Your answer
Aim for approximately 1 distinct marking point.
[1]