Sexual reproduction, gametogenesis, fertilisation and early development

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Describe and compare asexual and sexual reproduction, including the roles of meiosis, fertilisation and genetic variation in sexual life cycles.
Explain gametogenesis in mammals and flowering plants, using the terms spermatogenesis, oogenesis, pollen grain, embryo sac and haploid gamete correctly.

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Describe the structure and functions of mammalian male and female reproductive systems and explain the processes of copulation, fertilisation and implantation.

Interpret the stages of early development in animals, including zygote formation, cleavage, blastocyst or blastula formation and early cell differentiation.

Apply knowledge of reproductive processes to unfamiliar diagrams, photomicrographs and practical or experimental contexts.

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