Sexual Reproduction

Biology: Edexcel IGCSE, topic 4.1.2

Sexual Reproduction

The process of reproduction where the nuclei of two gametes (sex cells) fuse to form a zygote (a process known as fertilisation), producing offspring that are genetically different to one another. There are four key features of sexual reproduction:

Male and female gametes fuse

Male and female gametes fuse

  • Sperm and egg cells are the gametes in animals.
  • Pollen and ovum cells contain the gametes in flowering plants.
Two parents

Two parents

Offspring are non-identical

Offspring are non-identical

Gametes formed by meiosis

Gametes formed by meiosis

Test yourself on Sexual Reproduction

  • Which of the following are gametes?

  • How many parents are involved in sexual reproduction?

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