A heterozygote possesses a phenotype that is intermediate between the homozygous dominant and homozygous recessive phenotypes. This is most likely an example of _________(blank).

The alleles that cause Huntington disease in humans are an example of _________(blank).

An individual who has two identical alleles for a trait is said to be _________(blank).

Dosage compensation offsets the problems associated with differences in the number of _________(blank) chromosomes in many species

The coat color of calico cats is a result of _________(blank).

What theory did Mendel’s work with monohybrid crosses support?

The Lyon hypothesis attempts to explain the molecular mechanism of _________(blank).

Brown spotting of the teeth in humans is caused by a dominant X-linked gene. If a male with normal teeth marries a female with brown teeth who’s male parent had normal teeth, then _________(blank) of their female offspring will have brown teeth.

If a geneticist describes a trait as being 70% penetrant, what would that mean?

Mendel’s work with single-factor crosses: What resulted from Mendel’s work with single-factor crosses?