1) What area of the body does HuntinHuntington's disease affect? a) Brain b) Lungs c) Muscles d) Feet 2) What area of the body does cystic fibrosis affect? a) Brain b) Lungs c) Muscles d) Feet 3) Which recessive allele is represented by a lower case letter? a) dominant allele b) homozygous c) heterozygous d) recessive allele

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