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Biology: Chapter 122
Chapter 12.2 Vocabulary
| Term | Definition |
|---|---|
| Pedigree | a diagram that shows how a trait is inherited over several generations |
| Carrier | the person or people in a pedigree with one copy of the recessive allele but do not have the disease |
| Genetic Disorder | diseases or disabling conditions that have a genetic basis |
| Polygenic | characteristics that are influenced by many genes |
| Complex Character | characters that are influenced strongly both by the environment and by genes |
| Multiple Allele | genes with three or more alleles |
| Codominance | a situation where both alleles are expressed in the phenotype of a heterozygote |
| Incomplete Dominance | a situation where an individual displays a trait that is intermediate between its two parents |
| Sex-Influenced Trait | involved in other complex characters |
| Huntington's Disease | an autosomal dominant condition characterized by forgetfulness and irritability |
| Amniocentesis | a technique that allows a physician to remove some amniotic fluid from the amnion, the sac that surrounds the fetus |
| Chorionic Villi Sampling | where the physician takes a sample of the chorionic villi; cells derived from the zygote that grow between the mother's uterus and the placenta |
| Genetic Counseling | the process of informing a person or couple about their genetic makeup |
| Gene Therapy | a technique that places a healthy copy of a gene into the cells of a person whose copy of the gene is defective |
Created by:
truongm19
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