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Chapter 12

Section 2

TermDefinition
a diagram that shows the occurrence of a genetic trait in several generations of a family pedigree
in genetics, an individual who has one copy of a recessive autosomal allele that causes disease in the homozygous condition carrier
an inherited disease or disorder that is caused by a mutation in a gene or by a chromosomal defect genetic disorder
describes a characteristic that is influenced by many genes polygenic
a character such as skin color that is influenced strongly by both genes and the environment complex character
more than two alleles (versions of the gene) for a genetic trait multiple allele
a condition in which both alleles for a gene are fully expressed codominance
a condition in which a trait in an individual is intermediate between the phenotype of the individual's two parents because the dominant allele is unable to express itself fully incomplete dominance
an autosomal trait that is influenced by the presence of male or female sex hormones sex-influenced trait
a rare hereditary disease of the brain characterized by involuntary movements of the limbs or face, decreasing mental abilities, and eventual death Huntington's disease
a procedure used in fetal diagnosis in which amniotic fluid is removed from the uterus of the pregnant woman amniocentesis
a procedure in which the chorionic villi to are analyzed to diagnose fetal genotypes chorionic villi sampling
the process of testing and informing potential parents about their genetic makeup and the likelihood that they will have offspring with genetic defects or hereditary diseases genetic counseling
a technique that places a gene into a cell to correct a hereditary disease or to improve the genome gene therapy
Created by: fasolak16
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