PSYCH 2AA3 Chapter Notes - Chapter 2: In Vitro Fertilisation, Cystic Fibrosis, Genetic Disorder
9 Oct 2016
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Outline: the biology of heredity, single gene inheritance, genetic disorders. Which are casted by too many or too few chromosomes. Most cells of the body have a full set of 46 chromosomes tiny structures in the nucleus that contain genetic material. The gametes each have half that number 23 chromosomes. Many new techniques are available to couples who cannot conceive a child through sexual intercourse. The complete set of genes makes up a person"s heredity and is known as the person"s genotype. Phenotype: genetic instructions, in conjunction with environmental in uences, produce a phenotype, an individual"s physical, behaviour; and psychological features. Incomplete dominance: when one allele doe snot dominate completely. Sicks-cell trait: individuals with one dominant and one recessive allele. Mostly causes no problem, but when seriously low with oxygen they suffer a temporary, relatively mild form of the disease.
