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Chapter 5 Vocabulary
| Term | Definition |
|---|---|
| multiple alleles | three or more forms of a gene that code for a single trait. |
| sex chromosomes | carry genes that determine whether a person is male or female. |
| sex-linked genes | genes on the x and y chromosomes. |
| carrier | person who has one recessive and one dominant allele for a trait. |
| SECTION 2---genetic disorder | an abnormal condition a person inherits through genes or chromosomes. |
| pedigree | a chart/family tree that tracks which members of a family have a particular trait. |
| karyotype | picture of all the chromosomes in a cell. |
| SECTION 3---selective breeding | selecting organisms with desired traits to be parents of next generation. |
| inbreeding | crossing two individuals that have similar characteristics. |
| hybridization | breeders cross two genetically different individuals. |
| clone | an organism that has exactly the same genes as the organism from which it was produced. |
| genetic engineering | genes from one organism are transferred into the DNA of another organism. |
| gene therapy | inserting copies of a gene into a person’s cells |
| genome | all the DNA in one cell of an organism. |