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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. |