Biology Genetic Disorders
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Lack of pigment in skin, hair, and eyes; caused by recessive alleles
Accumulation of galactose in tissues, mental retardation, eye and liver damage; caused by recessive alleles
Accumulation of phenylalanine in tissues, lack of normal skin pigment, mental retardation; caused by recessive alleles
Lipid accumulation in brain cells, mental deficiency, blindness, death in early childhood; caused by recessive alleles
Dwarfism; caused by dominant alleles
Mental deterioration and uncontrollable movements, symptoms appear in middle age; caused by dominant alleles
Excess cholesterol in blood; heart disease
Sickle cell disease
Misshapen red blood cells, clot capillaries, damage tissues; caused by codominant alleles
Caused by deletion of 3 bases in DNA sequence. Causes protein to fold improperly and is destroyed before it can reach cell membrane.
What chromosomal abnormality causes Patau Syndrome?
extra #13 chromosome
What chromosomal abnormality causes Edward Syndrome?
extra #18 chromosome
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