5.1 Inheritance

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Question 13

In a species of plant, the allele for purple flowers ( $P\text{P}$ ) is dominant to the allele for white flowers ( $p\text{p}$ ).

Two plants with the genotype $Pp\text{Pp}$ are crossed. The cross produces 400 seeds.

How many of the plants grown from these seeds would be expected to have white flowers?

[1]

$100$

$200$

$300$

$75$

Markscheme

5.1 Inheritance Questions

GCSE
Biology
5.1 Inheritance

186 exam-style questions on OCR GCSE Biology 5.1 Inheritance, covering 5.1.1 The genome, 5.1.2 Environment and phenotype, 5.1.3 Variants and mutations, 5.1.4 How genetic variants influence phenotype, 5.1.5 Asexual and sexual reproduction, 5.1.6 Haploid and diploid, 5.1.7 Meiotic cell division, 5.1.8 Single gene inheritance, 5.1.9 Predicting single gene crosses, 5.1.10 Sex determination, 5.1.11 Multiple gene inheritance, and 5.1.12 Development of our understanding of genetics. Each one has a worked solution and a mark scheme showing where the marks go.

Question bank·5.1 Inheritance