Genetics DO Now

Front

What is the chance that a baby from two brown-eyed parents (Bb) will have blue eyes?

Back

25%

Front

What does it mean to have two different genes for a trait?

Back

Heterozygous

Front

What does it mean to have two of the same genes for a trait?

Back

Homozygous

Front

Which of the following is a phenotype: BB, Bb, bb, or Blue eyes?

Back

Blue eyes

Front

Which of the following is heterozygous: BB, Bb, or bb?

Back

Bb

Front

What is the definition of genotype?

Back

The genetic makeup of an organism, represented by alleles.

Front

What is the difference between dominant and recessive alleles?

Back

Dominant alleles express their trait even if only one copy is present; recessive alleles require two copies to express their trait.

Front

What is a Punnett square used for?

Back

To predict the genetic outcomes of a cross between two organisms.

Front

What is the phenotype of an organism with the genotype Bb?

Back

The phenotype can be brown eyes if B is dominant.

Front

What is the term for an organism's observable characteristics?

Back

Phenotype