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Biology

Genetics test review / was absent

TermDefinition
Homozygous Same , both capital or both lower case letters
Heterozygous Different , one capital one lower case letter
Dominant Capital letter , a trait that always shows up
Recessive Lower case letter , trait that doesn't always show up
Mono hybrid Has 1 trait , always in a 4 punnette square
Dihybrid Has 2 traits , in a larger punnette square
Homozygous Same , both capital or both lower case letters
Heterozygous Different , one capital one lower case letter
Dominant Capital letter , a trait that always shows up
Recessive Lower case letter , trait that doesn't always show up
Mono hybrid Has 1 trait , always in a 4 punnette square
Dihybrid Has 2 traits , in a larger punnette square
Alleles Different from a gene
Genotype Genes , genetics
Phenotype Physical appearance
Co-dominant More than 1 dominant
Incomplete dominance No dominant , no recessive , 2 different dominance
Sex-linked Involves sex chromosomes , XX female , XY male
Tay Sachs Rare autosomal recessive genetic disorder
Color blindness Absence of one of the primary cone pigments of the retina
Albinism Lack of pigmentation to the skin & hair of a person or animal or in coloration or a plant
Huntington disease Nerve cells in certain parts of brain waste away or degenerate
Hemophilia Blood clot is severely reduced , causing bleeding from a slight injury
PKU When a baby is born without the ability to properly break down amino acids called Phenylalanine
Sickle cell anemia Red blood cells take a sickle or crescent shape .
Cystic fibrosis Affects the exocrine glands . Causes production of abnormally thick & stick mucus to build up in the lungs , digestive tract & other areas of the body . One of most common lung diseases in children & young adults
Created by: kvvega