Monohybrid Crosses (VCE SSCE Biology): Flashcards
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Monohybrid cross
Monohybrid cross
Genetic cross observing inheritance of alleles for a single gene
Punnett square
Punnett square
Square diagram used to predict genotypes of offspring
Complete dominance
Complete dominance
One allele completely masks the effect of another allele
Heterozygous genotype
Heterozygous genotype
Has one dominant and one recessive allele
Phenotypic ratio from cross
Phenotypic ratio from cross
3:1 (dominant to recessive)
Codominance
Codominance
Two traits independently and equally expressed
Location of most sex-linked traits
Location of most sex-linked traits
On the X chromosome
Sex-linked trait proportion calculation
Sex-linked trait proportion calculation
Calculate separately for male and female offspring
Test cross
Test cross
Dominant phenotype crossed with homozygous recessive individual
One recessive offspring in test cross indicates
One recessive offspring in test cross indicates
Parent with dominant phenotype is heterozygous
