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Chapter 8

definitions

TermDefinition
Mutation A change in the genetic material of a cell.
Lethal Mutation A mutation that causes death.
Gene Mutation A change in the sequence of the nucleotides in a gene.
Somatic Mutation A mutation that occurs in the body cells(those cells that do not make gametes).
Germ Mutation A mutation in a gamete or gamete-forming cell.
Chromosomal Change A change involving the number of chromosomes or the number of location of genes in a chromosome.
Diploid Having one pair of each type of chromosome in an organism.
Selective breeding Choosing certain organisms with desirable traits to breed in the hope that their offspring also will have the desired traits.
Inbreeding The mating of closely related organisms.
breed A group of organisms that is purebred for certain characteristics.
Crossbreeding Breeding animals from different varieties to produce a breed with traits form both parents.
Genetic Engineering The use of special techniques to control the genetic makeup an organism.
Human Genome Project Studying all twenty-three pairs of human chromosomes.
Created by: yoceli