Genetics
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Created by:
misswatson Plus on May 24, 2010
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20 terms
Terms | Definitions |
|---|---|
 Colorblindness | Disorder where people cannot see shades of red or green. |
| Polygenic inheritance | Occurs when a group of genes pairs act together to produce a single trait. |
| Genetic engineering | A process in which scientists go into cells and change or correct specific damaged or mutated genes. |
| Mulriplr alleles | When more than two alleles control a trait. |
| Genome | A chromosome map. |
| Incomplete dominance | A condition when both alleles are expressed or shown in the offspring by a BLENDING in the phenotype.. |
| WAvy hair or pink flowers | Examples of incomplete dominance. |
| Blood type or black and white chicken feathers | Examples of codominance. |
| Codominance | A condition when both alleles are expressed or shown in the offspring and BOTH are equally shown. |
| Carrier | A person who has an allele for a trait but who does not show the trait because they also have a normal allele. |
| Cystic fibrosis | A homozygous recessive disorder where thick mucusis produced in the lungs and digestive system. |
| Sickle cell anemia | A homozygous recessive disorder where the red blood cells are misshapened and do not carry enough oxygen. |
| Hemophilia | A disorder where the blood does not clot properly. |
| Pedigree Chart | A tool for tracing the occurrence of a trait in a family. |
| 20,000-25,000 | There are about ______ genes on the 46 human chromosomes. |
| Sex-linked | A trait where the alleles are located on the X or Y chromosomes. |
| Blood types | Example(s) of multiple alleles. |
| Bacteria that make insulin | Example(s) of genetic engineering. |
| Color of hair, skin, eyes, bird eggs, etc. | Example(s) of polygenic inheritance. |
| Colorblindness and Hemophilia | Example(s) of sex-linked traits. |
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