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Bio I Ch. 14

Ch. 14.1

QuestionAnswer
What is a picture of chromosomes called? karyotype
Body cell chromosomes are known as? autosomes
How many normal human autosomes are there? 22 pair or 44
How many normal sex chromosomes are there? 1 pair or 2
What is a chart that shows the relationships within a family? pedigree
Are sperm and egg cells haploid or diploid? haploid, that means one set of chromosomes
Is a zygote haploid or diploid? diploid, that means two sets of chromosomes after fertilization
Most human traits are determined by many genes. This is called polygenic
Human blood types are determined by ________ alleles. 3, A, B, and i
What are the alleles for type A blood? AA or Ai
What are the alleles for type B blood? BB or Bi
What are the alleles for type O blood? ii
What are the alleles for type AB blood? AB
Name this recessive disorder in which humans lack pigmentation in skin, hair, and eyes. albinism
Name this recessive disorder in humans in which there is excess mucus in lungs, digestive tract, and liver with an increased susceptibility to infections. cystic fibrosis
Name this recessive disorder in which humans cannot break down phenylalanine and can cause mental retardation. phenylketonuria or PKU
Name this recessive disorder in which humans have a lipid accumulation in brain cells which causes mental deficiency, blindness, and death. Tay-Sachs disease
Name this dominant disorder in which humans exhibit from dwarfism. achondroplasia
Name this dominant disorder in which humans suffer mental deterioration and seizures during middle age years. Huntington's disease
Name this dominant disorder in which humans have excess cholesterol in their blood. hypercholesterolemia
Name this codominant disorder in which humans have misshapen red blood cells which can damage tissues. sickle cell disease
Is it bad if wrong blood types are mixed? Yes. Blood will clump. Antibodies will "fight" the antigens.
PKU can be treated with a special ______________. diet
Created by: macjlc13
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