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DNA Review (28 Qs)

TermDefinition
DNA Instruction Book for building life
6 feet The length of DNA in each cell
3 feet The length of DNA given by your dad
Chromosome A small part of DNA
23 pairs The number of chromosomes humans have
Gene A small pinch of a chromosome
Trait The way a gene makes you look
Trait example eye color
Alelle One of two or more ways a gene makes you look
Alelle example brown or blue eyes
Genotype Letters used to show the traits of genes
Phenotype How the two alelles make you look
Dominant Gene The trait that always wins
Recessive Gene The trait that shows when no dominant is present
Homo same
Hetero different
Homozygous having two of the same alelles
Heterozygous having two different alelles
Homozygous dominant TT
Homozygous recessive tt
Heterozygous example Tt
Pure Breed Homozygous alelles
Hybrid Heterozygous alelles
Probability The chance of something happening
The alelle "A" always pairs with a T
The alelle "C" always pairs with a G
DNA is made of sugar, four nitrogen bases, phosphates
four nitrogen bases A,C,T,G
Created by: Mr. Dornfeld
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