11 terms

Unit 5 Lesson 2 Vocabulary

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allele
the different forms of a gene
dominant trait
the trait observed when at least one dominant allele for a characteristic is inherited
genetics
the study of heredity
genotype
the inherited combination of alleles
heterozygous
an organism that has two different alleles for a trait
homozygous
having two identical alleles for a trait
percentage
a ratio that compares a number to 100
phenotype
what an organism looks like as a consequence of its genotype
Punnett square
a chart that shows all the possible combinations of alleles that can result from a genetic cross
ratios
A comparison of two quantities by division (X/Y or X:Y-- numerator associate with word "to" and denominator "of"
recessive trait
the characteristic that is expressed only in the homozygous recessive condition