16 terms

Chapter 3 Cells and Heredity

STUDY
PLAY
heredity
the passing of traits from parents to offspring
trait
a physical characteristic
gene
controls a trait
genetics
the study of heredity
purebred
an organism that has the same alleles from both parents
alleles
different forms of a trait
dominant allele
an allele that covers up other alleles; it shows up always when present
recessive allele
an allele that is covered up by other alleles; it only shows up in purebreds
hybrid
two different alleles for a trait
probability
how likely an event is to occur
Punnett Square
shows all of the possible offspring for a genetic cross
Phenotype
the physical appearance
Genotype
the set of alleles
Homozygous
two of the same alleles for a trait
Heterozygous
two different alleles for a trait
Meiosis
makes sex cells