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CP Human Genetics

Human Genetics F14

QuestionAnswer
ABO blood type a classification system of multiple alleles to identify blood type
Cystic fibrosis an inherited condition caused by a defective gene that causes the secretions to become thick and sticky; the secretions plug up tubes, ducts and passageways, especially in the lungs and pancreas.
Down's Syndrome A human genetic disease resulting from having an extra chromosome on pair #21, characterized by mental retardation and heart and respiratory defects
color blindness the inability to distinguish colors and is an inherited sex
hemophilia genetic disorder that impairs the blood's ability to clot and can cause excessive bleeding
sex-linked traits An inherited trait, determined by a gene located on a sex chromosome X; in males.
PKU lackinf an an emzyme to break doewn the amoion acid, phenyalanine. Phenylalanine accumulates in blood and seriously impairs early neuronal development. The defect can be controlled by diet.
karyotype A method of organizing the chromosomes of a cell in relation to number, size, and type
multiple allele Typically, there are only two alleles for a gene in a diploid organism. The presence of multiple alleles is best illustrated by the ABO blood group system
nondisjunction n accident of meiosis or mitosis, in which both members of a pair of homologous chromosomes or both sister chromatids fail to move apart properly
Pedigree A family tree describing the occurrence of heritable characters in parents and offspring across as many generations as possible.
Huntington's Disease autosomal dominant, inherited adult
Sickle Cell Anemia a disease passed down through families in which red blood cells form an abnormal sickle or crescent shape. Red blood cells carry oxygen to the body and are normally shaped like a disc.
Created by: nbctbio