Ch. 4 Modern Genetics Evana Gonzalez

Multiple Alleles
A gene that has more than one allele
Sex Chromosomes
Carry genes that determine whether a person is a male or a female
Sex-linked genes
Genes on the X and Y chromosomes
A person who has one recessive allele for a trait and a dominant allele
Genetic Disorder
An abnormal condition that a person inherits through genes or chromosomes
chart or "family tree" that tracks which members of the family have a particular trait
A picture of all the chromosomes in one cell
Selective breeding
The process of selecting organisms with desired traits to be parents of the next generation
The technique that involves crossing two individuals that have similar characteristics
Breeders cross two genetically different individuals
An organism that has exactly the same genes as the organism it was produced from
Genetic engineering
Genes from one organism are transferred into the DNA of another organism
Gene therapy
Inserting copies of a gene directly into a person's cell
is all the DNA in one cell of an organism