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Cambridge IGCSE Biology practice

What chromosome does the mother always contribute to the child?

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At a glance

MCQ

Type

cambridge_mcq

Style

Topic

Chromosomes, genes and proteins

Exam-style question

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What chromosome does the mother always contribute to the child?.

  1. A.X chromosome
  2. B.Y chromosome
  3. C.Either X or Y chromosome
  4. D.No sex chromosome

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Paper 3 structured question: Chromosomes, genes and proteins

Paper 3Theory (Core)2 marks

Diagram Description

Sex Chromosome Inheritance

Diagram shows a mother with XX chromosomes and a father with XY chromosomes producing offspring.

ParentSex Chromosomes
MotherXX
FatherXY
  1. a

    Describe how the sex of a child is determined in humans.

    Aim for approximately 2 distinct marking points.

    [2]