Haileybury Astana Year 7 Reproduction Haileybury Astana Year 7

Distinguish between identical and non-identical twins Describe some of the ways of increasing human fertility Outline the stages of the menstrual cycle Learning Objectives

Identical twins are made from ____ egg and ____ sperm Identical twins are made from ____ egg and ____ sperm. This results in the formation of a single _____. Each twin will be ______ identical and of the same _____. zygote Non-identical twins are produced when both ______ release an egg. Each egg is fertilised by a different sperm and results in the production of two ______. Twins WORD BANK genetically one embryos one ovaries zygote gender

Sometimes fertility treatment works too well and results in multiple births Some couples have difficulty producing a baby This may be because the man does not produce many healthy sperm or the woman does not release eggs Treatment with a hormone called FSH helps the woman to release eggs Fertility treatment Write out the above information in the best order for a well constructed paragraph.

In-vitro fertilisation (IVF)

In-vitro fertilisation In-vitro means in ______. The woman is injected with _____ to make her produce many eggs. These _____ are collected. _______ takes place outside of the body. The resulting ____ are frozen and stored until needed. In-vitro fertilisation EGGS GLASS EMBRYOS FERTILISATION FSH Word bank

Periods How long does one complete menstrual cycle take? What happens during menstruation? How long does menstruation last? What happens around day 14? How might a woman know that she is pregnant? Periods