1) what genetic disease makes you cough and have excess fluid in lungs? a) cystic fybrosis b) huntingtons disease c) down syndrome d) albinism e) sickle cell 2) what type of cell fights disease a) white blood cell b) red blood cell c) root hair cell 3) name the four different pathogens a) viruses b) bacteria c) fungi d) parasties e) white blood cells f) antibodies 4) what word means having two different alleles a gene a) heterozygeous b) homozygeous c) allele 5) what does an antibody do? a) inactivate foreign substances such as pathogens and toxins b) sit there and look pretty c) send messages to your body 6) can cystic fibrosis be inherited from one parent a) yes b) no 7) is the cystic fibrosis allele dominant or recessive  a) dominant b) recessive 8) true or false? In humans males have XY chromosomes and females have XX. a) true b) false 9) Juan and Melina are brother and sister. Is their DNA likely to be identical? a) yes b) no c) not enough information

Biology

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