an observable characteristic

When an organism has two of the same alleles, it is called

When an organism has two different alleles, it is called

_____ are units of heredity made up of DNA.

A/n _____ trait is a trait that prevents or masks the showing of another trait.

A trait that is hidden by the presence of a dominant trait is known as a _____ trait.

In genetics, an organism that carries both a dominant and recessive allele for the same trait is called a/n _____.

In genetics, this refers to an organism that carries two dominant or two recessive alleles for a given trait: _____.

A _____ is the physical appearance of an organism; i.e. black haired, blue-eyed, widow's peak.

The set of genes carried by an organism; i.e. TT, Tt, tt is called a _____.

Which of the following are considered recessive traits in humans?

Is it possible for two parents who are heterozygous for a trait to have offspring that have the recessive phenotype?

the organism's genetic makeup

Select all that would be considered phenotypes:

Select all that would be considered genotypes:

What genotype is homozygous dominant?

What genotype is homozygous recessive?

What genotype is heterozygous?

a trait that is masked unless 2 copies are present is

Who is the "father" of modern genetics?

Sarah is righ handed but his mother is left handed

Brody is a heterozygote for the trait handesness

Jeremy is homozygous recessive for the trait of handedness

Marleigh is right handed but her daughter is left handed

Allison is right handed with no family history of left handedness

Pedro is left handed

For any given trait, there is a sequence of DNA that codes for the trait called a

There are two or more possible forms of the gene. These forms are called

Homozygous Dominant, Purebred

Heterozygous, hybrid carrier

Homozygous recessive, Purebred