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5.1 Inheritance

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Question 42

Which sentence describes the discovery made by James Watson and Francis Crick that helped develop our understanding of genetics?

A

DNA has a double-helix structure made of two strands held together by complementary base pairs.

B

Traits are passed from parents to offspring by independent factors that can be dominant or recessive.

C

Chromosomes are found in pairs, and one chromosome from each pair is inherited by the offspring.

D

The genetic material of all living organisms is stored inside proteins rather than nucleic acids.

Markscheme

5.1 Inheritance Questions

  1. GCSE
  2. /Biology
  3. /5.1 Inheritance

97 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.

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