Some women cannot become pregnant because they do not ovulate regularly. Clomifene therapy can be used to treat these women.
Clomifene causes the pituitary gland to release more FSH and LH.
Explain how clomifene therapy increases the chance of pregnancy.
Clomifene therapy increases the chance of a multiple pregnancy, such as twins.
Suggest why.
Explain why clomifene therapy would not help a woman whose oviducts are blocked.
48 exam-style questions on Edexcel GCSE Biology 7.2 Reproductive hormones, covering 7.2.1 Stages of the menstrual cycle, 7.2.2 Hormonal control of the menstrual cycle, 7.2.3 Hormonal contraception, 7.2.4 Evaluating contraception methods, and 7.2.5 Hormones in Assisted Reproductive Technology. Each one has a worked solution and a mark scheme showing where the marks go.