OCR A Level Biology B (Advancing Biology)

OCR A Level Biology B (Advancing Biology) The Developing Individual: Meiosis, Growth and Development Exam Questions

Free OCR A Level Biology B (Advancing Biology) exam questions on The Developing Individual: Meiosis, Growth and Development, with mark schemes. Covers meiosis, gametes, fertilisation, growth patterns and development.

The Developing Individual: Meiosis, Growth and Development exam questions

1 question pack of real past exam questions with its mark scheme. Answer every question without notes, then mark your answers line by line against the mark scheme.

3.1.2 The Developing Individual: Meiosis, Growth and DevelopmentQuestions and mark scheme
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About OCR A Level Biology B (Advancing Biology) The Developing Individual: Meiosis, Growth and Development

This topic covers how individuals develop.

What you need to know

  • Meiosis Two divisions producing haploid gametes.
  • Variation Crossing over and independent assortment.
  • Fertilisation Fusion of gametes restores diploid number.
  • Growth Measuring growth and growth patterns in plants and animals.

Common mistakes in The Developing Individual: Meiosis, Growth and Development

  • Saying meiosis gives identical cells.
  • Mixing haploid and diploid.
  • Forgetting growth can be absolute or relative.

Try three The Developing Individual: Meiosis, Growth and Development exam-style questions

1. State the number of chromosomes in a human gamete. (1 mark)

Show the mark scheme answer

23.

2. Explain how crossing over produces variation. (2 marks)

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Homologous chromosomes exchange sections (1), producing new combinations of alleles (1).

3. Give one way of measuring growth. (1 mark)

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Dry mass, length or height over time.

The Developing Individual: Meiosis, Growth and Development FAQs

What does this topic cover?

Meiosis, fertilisation and growth.

Why use dry mass?

Water content varies, so dry mass is more reliable.

What is a growth curve?

A graph of size against time.