CAIE A-Level Biology A2 18.3.4 Assisted Reproduction in Endangered Mammals Questions

Practise sequencing IVF, describing embryo transfer and surrogacy, evaluating breeding programmes and explaining how frozen gametes preserve genetic diversity.

Exam points

Sequence IVF through hormone stimulation, mature-oocyte collection, sperm addition, fertilisation, embryo culture or selection and placement in a uterus.
Describe embryo transfer and surrogacy by selecting an embryo, implanting it into a recipient female and managing storage or hormone synchronisation where required.
Evaluate assisted reproduction through breeding difficulty, reproductive rate, artificial insemination, IVF, embryo transfer, surrogacy, zoo coordination and release constraints.
Explain how frozen sperm or other cryopreserved gametes widen the available breeding pool, preserve alleles and allow transfer between facilities or use after a donor dies.

[Maximum number: 4]

Zoos work with local groups around the world to help conserve endangered species. One example of this is the use of assisted reproduction, such as IVF, with endangered mammals such as the eastern black rhino.

Outline the process of IVF.

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CAIE A-Level Biology A2 18.3.4 Assisted Reproduction in Endangered Mammals Questions question 1