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SMITH Sci Genetics

QuestionAnswer
capital capital homozygous dominant
capital lowercase heterozygous
lowercase lowercase homozygous recessive
allele one letter
genotype shows the alleles, what the letters look like
phenotype physical trait expressed
dominant trait if present will be expressed and masks the recessive
recessive trait expressed if the dominant is not present
RR called homozygous dominant
Rr called heterozygous
rr called homozygous recessive
hybrid both alleles different
pure bred both alleles the same
punnett square shows possible outcomes of genetic cross
RR x rr genotype percents? 100% heterozygous
Rr x Rr genotype percents? 25% homozygous dominant, 50% heterozygous, 25% homozygous recessive
RR x Rr genotype percents? 50% RR 50% Rr
Created by: astolz
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