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Biology Terms

TermDefinition
amniocentesis a procedure used in fetal diagnosis in which amniotic fluid is removed from the uterus of the pregnant woman
carrier in genetics, an individual who has one copy of a recessive autosomal allele that causes disease in the homozygous condition
chorionic villi sampling a procedure in which the chorionic villi to are analyzed to diagnose fetal genotypes
codominance a condition in which both alleles for a gene are fully expressed
complex character a character such as skin color that is influenced strongly by both genes and the environment
genetic counseling 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 disorder an inherited disease or disorder that is caused by a mutation in a gene or by a chromosomal defect
gene therapy a technique that places a gene into a cell to correct a hereditary disease or to improve the genome
Huntington's disease a rare hereditary disease of the brain characterized by involuntary movements of the limbs or face, decreasing mental abilities, and eventual dealth
incomplete dominance 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
multiple allele more than two alleles for a genetic trait
pedigree a diagram that shows the occurrence of a genetic trait in several generations of a family
polygenic describes a characteristic that is influenced by many genes
sex-influenced trait an autosomal trait that is influenced by the presence of male or female sex hormones
Created by: RolfesE20
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