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Chapter 4 Vocab
life science
15
Science
7th Grade
12/10/2010

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Term
multiple alleles
Definition
Three or more forms of a gene that code for a single trait.
Term
sex-linked gene
Definition
A gene that is carried on the X or Y chromosome.
Term
carrier
Definition
A person who has one recessive allele for a trait and one dominant allele, but does not have the trait.
Term
pedigree
Definition
A chart or “family tree” that tracks which members of a family have a particular trait.
Term
genetic disorder
Definition
An abnormal condition that a person inherits through genes or chromosomes
Term
amniocentesis
Definition
A technique by which a small amount of the fluid that surrounds a developing baby is removed; the fluid is analyzed to determine whether the baby will have a genetic disorder.
Term
karyotype
Definition
A picture of all the chromosomes in a cell arranged in pairs.
Term
selective breeding
Definition
The process of selecting a few organisms with desired traits to serve as parents of the next generation.
Term
inbreeding
Definition
A selective breeding method in which two individuals with identical or similar sets of alleles are crossed.
Term
hybridization
Definition
A selective breeding method in which two genetically different individuals are crossed.
Term
clone
Definition
An organism that is genetically identical to the organism from which it was produced.
Term
genetic engineering
Definition
The transfer of a gene from the DNA of one organism into another organism, in order to produce an organism with desired traits.
Term
gene therapy
Definition
The insertion of working copies of a gene into the cells of a person with a genetic disorder in an attempt to correct the disorder.
Term
genome
Definition
All of the DNA in one cell of an organism.
Term
Where i got it
Definition
personsucessnet.com
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