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An experimental process of inserting genes into germ cells or fertilized eggs to cause a genetic change that can be passed on to offspring. May be used to alleviate effects associated with a genetic disease.
See also: genomics, somatic cell gene therapy.
Industry:Biology
A nitrogenous base, one member of the base pair GC (guanine and cytosine) in DNA.
See also: base pair, nucleotide.
Industry:Biology
A single set of chromosomes (half the full set of genetic material) present in the egg and sperm cells of animals and in the egg and pollen cells of plants. Human beings have 23 chromosomes in their reproductive cells.
See also: diploid.
Industry:Biology
A way of denoting the collective genotype of a number of closely linked loci on a chromosome..
Industry:Biology
Having only one copy of a particular gene. For example, in humans, males are hemizygous for genes found on the Y chromosome..
Industry:Biology
Cancer that occurs due to the inheritance of an altered gene within a family.
See also: sporadic cancer.
Industry:Biology
The presence of different alleles at one or more loci on homologous chromosomes..
Industry:Biology
A short stretch of nucleotides whose base sequence is virtually identical in all the genes that contain it. Homeoboxes have been found in many organisms from fruit flies to human beings. In the fruit fly, a homeobox appears to determine when particular groups of genes are expressed during development..
Industry:Biology
