15 terms

8th Heredity-Miller

Mrs. Miller's list is slightly different
STUDY
PLAY
traits
characteristics that an organism can pass on to its offspring through its genes
heredity
the passing of traits from parents to offspring
genes
factors that control traits
alleles
different forms of a gene
dominant allele
an allele whose trait always shows up in the organism when the allele is present; shown as a capital letter
recessive allele
asn allele that is masked when a dominant allele is present; shown as a lowercase letter
hybrid
an organism that has two different alleles for a trait
probability
the likelihood that a particular event will occur
Punnett Square
a chart that shows all the possible combinations of alleles that can result from a genetic cross
phenotype
an organism's physical appearance, or visible traits
genotype
an organism's genetic makeup, or allele combinations
homozygous
having 2 identical alleles for a trait
heterozygous
having 2 different alleles for a trait
codominance
a condition in which neither of 2 alleles of a gene is dominant or recessive
mutations
a change in a gene or chromosome