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Heredity terms 11-20
hump day terms for heredity
10
Science
7th Grade
02/27/2015

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Term
Genotype
Definition
the combination of two alleles of the gene for a trait (the letters for the genes)
Term
Phenotype
Definition
the physical appearance or characteristics as a result of its combination of genes (what it looks like)
Term
Homozygous
Definition
an individual organism that has two alleles that are the same for a trait; also called a pure bred; use two letters of the same size
Term
Heterozygous
Definition
an individual organism that has two different alleles for a trait; also called a hybrid; use two letters of different sizes
Term
Genetic disorders
Definition
disorders of diseases caused by the genetic makeup of the individual organism; examples: hemophilia, sickle-cell disease, cystic fibrosis
Term
Genetic engineering
Definition
A process in which genes from one organism are transferred into the DNA of another organism
Term
Selective breeding
Definition
individuals are chosen to be the parents of the next generation based on desirable traits for the offspring.
Term
Hybridization
Definition
selecting parents with two different desirable traits for the offspring to carry; the offspring is genetically different than either parent but has traits from both parents
Term
Inbreeding
Definition
selecting parents with one, usually recessive, trait to pass to the next generation; the offspring will have the same genotype for the targeted trait
Term
Cloning
Definition
creating offspring from one parent; the offspring is genetically identical to the parent; plants easily do this with a cutting
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