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Genetics
Living Environment Vocabulary for Genetics Unit
21
Biology
10th Grade
05/23/2011

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Term
asexual reproduction
Definition
a method of reproduction in which all the genes passed on to the offspring come from a single individual or parent
Term
biotechnology
Definition
the combination of technology and biological sciences
Term
body cells
Definition
non-reproductive cells in an individual such as skin, liver, and muscle cells; body cells contain the full number of chromosomes typical of the species
Term
bond
Definition
the chemical link between two atoms that hold molecules together
Term
chromosome
Definition
a thick, threadlike structure that contains genetic information in the form of DNA
Term
clone
Definition
an organism that is genetically identical to the organism from which it was produced
Term
DNA
Definition
(deoxyribonucleic acid) the material found in all cells that contains genetic information about that organism
Term
egg
Definition
a sex cell produced by a female
Term
expressed
Definition
the way that an unseen gene is seen in an organism as an actual physical trait
Term
gene
Definition
a segment of DNA (on a chromosome) that contains the code for a specific trait
Term
genetic engineering
Definition
a set of technologies that humans use to alter the genetic instructions of an organism by substituting DNA molecules
Term
genetic recombination
Definition
the formation of a new combination of genes during sexual reproduction
Term
heredity
Definition
the passing of traits from parent to offspring
Term
mutation
Definition
any alteration in the sequence of DNA
Term
replicate
Definition
to copy
Term
selective breeding
Definition
the process of choosing a few organisms with desirable traits to serve as the parents of the next generation
Term
sexual reproduction
Definition
a method of reproduction that involves two parents to produce offspring that are genetically different from either parent
Term
sperm
Definition
male sex cell
Term
subunit
Definition
the section of a DNA molecule that contains a sugar, a phosphate, and a base
Term
template
Definition
the pattern for a new molecule
Term
trait
Definition
a characteristic that is passed from parent to offspring through the genes
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