Genetics & Meiosis

Front

What is Codominance?

Back

A genetic scenario where both alleles in a heterozygous individual contribute equally and visibly to the phenotype.

Front

What is Incomplete Dominance?

Back

A genetic scenario where the phenotype of a heterozygote is intermediate between the phenotypes of the two homozygotes.

Front

What is a Punnett Square?

Back

A diagram used to predict the outcome of a particular cross or breeding experiment.

Front

What is the probability of obtaining a short tongue offspring from two heterozygous green tree frogs (Tt)?

Back

25%.

Tags

NGSS.HS-LS3-3

Front

What does the genotype X^r X^r represent in fruit flies?

Back

It represents a white-eyed female fruit fly.

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

Front

What is a heterozygous genotype?

Back

A genotype consisting of two different alleles for a particular gene, such as Ff.

Front

What is a homozygous genotype?

Back

A genotype consisting of two identical alleles for a particular gene, such as BB or gg.

Front

What is the phenotypic ratio of a dihybrid cross?

Back

The typical phenotypic ratio is 9:3:3:1.

Front

What is the significance of the dominant allele?

Back

A dominant allele is one that expresses its trait even when only one copy is present in the genotype.

Front

What is the significance of the recessive allele?

Back

A recessive allele only expresses its trait when two copies are present in the genotype.