Science / Genetics / Recessive Gene: A gene which will be expressed only if there are 2 identical copies or, for a male, if one copy is present on the x chromosome. MORE
Science / Biology / Dominant: Refers to an allele of a gene that is always expressed in heterozygotes. MORE
Science / Genetics / Tay-Sachs Disease: A fatal degenerative disease of the nervous system due to a deficiency of hexosamidase a, causing mental deficiency, paralysis, mental deterioration, and blindness: found primarily but not exclusively MORE
Science / Genetics / Dwarfism: Conditions of short stature with adult height under 4'10' as adult, usually with normal intelligence and lifespan. Ehlers danlos syndrome connective tissue condition including problems with tendons, l MORE