GETTING DESIRED TRAITS
SELECTIVE
BREEDING
INBREEDING: The continued
breeding of closely related
individuals so as to preserve
The intentional mating desirable traits; produces
individuals with similar
of two animals in an
characteristics.
attempt to produce
HYBRIDIZATION: Producing
offspring with
offspring from parents of
desirable
characteristics or for different stock; produces offspring
with the best traits of each
the elimination of a
organism. (Used extensively in
trait.
agriculture, where new forms of
hardy and disease-resistant plants
are produced commercially.)
GENETIC
ENGINEERING
The process of
removing bits of
genetic material from
one organism and
inserting it into
another.
Alteration of the DNA of a cell for
purposes of research, to
manufacture animal proteins,
correct genetic defects, or make
improvements to plants and animals
bred by man.
CLONING:
Uses the genetic information from
a single cell of an organism to
produce another organism with the
same genetic information.
MUTATIONS
A change in the
number, type or order
or nucleotide-base
sequence on a gene or
DNA molecule deletion, insertion,
substitution.
SEX-LINKED
DISORDERS
Any disease or abnormal condition
that is determined by the sex
chromosomes or by a defective
gene on a sex chromosome:
Colorblindness, Hemophilia, Turner
Syndrome, Klinefelter’s Syndrome