Concept 1 Mendelian genetics and vocabulary

The study of how traits are inherited through the interactions of genes.

• Genetics

• Heredity

• Trait

• Allele

A trait that is covered over by another form of that trait.

• Recessive Trait

• Dominant Trait

• Allele

• Gene

A trait that covers over another form of that trait.

• Dominant Trait

• Recessive Trait

• Allele

• Gene

An organism that has both aleles in the same form: dominant or recessive

• Homozygous

• Heterozygous

• Heredity

• Allele

An organism that has one dominant allele and one recessive allele.

• Heterozygous

• Homozygous

• Gene

• Trait

An organism's genetic make up. Usually expressed in letters.

• Genotype

• Phenotype

• Dominate Trait

• Recessive Trait

A tool to predict the probability of certain traits that could be found in the offspring.

• Punnett Square

• Recessive Trait

• Allele

• Heterozygous Allele

Select all of the following genotypes that are considered Heterozygous.

• AA

• Bb

• zz

• Dd

• Hh

Select all of the following genotypes that are considered Homozygous.

• AA

• bb

• Hh

• Dd

• zz

Red flowers (R) are dominant over white flowers (r). Select the genotypes that would produce red flowers.

• RR

• Rr

• rr

• Rw