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8 terms

ch. 14 questions (1)

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dominant
the allele that is expressed, regardless of the other allele
recessive allele
the allele that is expressed only if there is no dominant allele present
heterozygous
having different alleles for a particular gene
homozygous
having two identical alleles for a particular gene
genotype
: the actual genetic makeup (for example: FF, Ff, or ff)
phenotype
the observable physical traits (for example: purple flower color
recessive inherited disease like cystic fibrosis.
Heterozygous parents are carriers of the disease-causing allele
dominant inherited disease
One dominant allele is needed to show disease
Dominant lethal alleles are usually eliminated from the population