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EnglandBiologyQuick questions
Topic 3: Genetics
Quick questions on Monohybrid inheritance, Punnett squares and pedigrees - Edexcel GCSE Biology
2short Q&A pairs drawn directly from our worked dot-point answer. For full context and worked exam questions, read the parent dot-point page.
What is q1?Show answer
Define the terms "homozygous" and "heterozygous". [2 marks]
What is q2?Show answer
A father is XY and a mother is XX. Use the gametes to explain why about half of children are boys. [2 marks]
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