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Bio Genetics test

Biology 2017 genetics test review

homozygous having identical alleles for a given trait
heterozygous having 2 different alleles for a given trait
recessive trait that is masked by the dominant allele
dominant trait that is visible
genetics the area of science that studies heredity
genotype genetic makeup of an individual
phenotype observed traits described in words
hybrid a heterozygous individual
gene a specific trait
allele one of two or more possible forms of a gene
Mendel the "father" of genetics
Punnett square a method used to establish the probabilities of the result of a genetic cross
dihybrid cross TtBb X TtBb
homozygous dominant TT
homozygous recessive tt
heterozygous Tt
intermediate inheritance blending (red + white = pink)
principle of independent assortment traits located on different chromosomes sort out independent of one another
principle of dominance and recessiveness if a dominant gene is present, it will show up. Both alleles have to be recessive to show recessive.
principle of the law of segregation recessive traits can show up generations later when the recessive alleles pair up again
Created by: Freshmensphs