OxfordAQA International GCSE Biology
OxfordAQA International GCSE Biology Genetic Inheritance Exam Questions
Free OxfordAQA International GCSE Biology exam questions on Genetic Inheritance, with mark schemes. Covers alleles, genetic crosses, inherited disorders and sex determination.
Genetic Inheritance exam questions
These packs of real past exam questions cover the whole of 3.5 Inheritance, including Genetic Inheritance. Work through every question on this sub-topic, then mark your answers against the mark scheme.
StemUp mark scheme flashcards
GCSE and IGCSE Biology Flashcards
Every answer is written in mark scheme wording, so you learn exactly what examiners give marks for. Pick your exam board, then test yourself with the questions on this page.
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About OxfordAQA International GCSE Biology Genetic Inheritance
This sub-topic covers inheritance.
What you need to know
- Terms Dominant, recessive, homozygous and heterozygous.
- Crosses Punnett squares and ratios.
- Disorders Cystic fibrosis and polydactyly.
Common mistakes in Genetic Inheritance
- Mixing genotype and phenotype.
- Wrong ratios.
Try two Genetic Inheritance exam-style questions
1. What is the ratio from Aa x Aa? (1 mark)
Show the mark scheme answer
3 : 1 dominant to recessive.
2. State the sex chromosomes of a male. (1 mark)
Show the mark scheme answer
XY.
Genetic Inheritance FAQs
What does this cover?
Crosses, disorders and sex determination.
Is embryo screening examined?
Yes, including ethical issues.
Revise this topic with flashcards: GCSE and IGCSE Biology Flashcards, with mark scheme answers for Anki and Quizlet.
