Heredity

The passing of traits from parents to offspring

• heredity

• a molecule

This trait always shows up in an organism when the allele is present

• dominant allele

• codominance

• probability

• recessive allele

This trait is hidden whenever the dominant allele is present

• dominant allele

• codominance

• recessive allele

• Punnett Square

An organism's physical appearance or visible traits. (what it looks like)

• phenotype

• genotype

An organism's genetic makeup, or allele combination. The letters we use to show the allele combination.

• phenotype

• genotype

An organism that has two identical (THE SAME) alleles for a trait (purebred)

• homozygous

• heterozygous

An organism that has two different alleles for a trait (hybrid)

• homozygous

• heterozygous

Which of the following is heterozygous?

• MM

• Mm

• mm

Which of the following is homozygous dominant?

• RR

• Rr

• rr

What organism did Mendel study?

• pea plants

• onions

• mice

• cats