Punnett Squares

What are genes?

• Something you wear

• The powerhouse of cells

• Segments of DNA that carry traits for offspring

• None of these.

Which of the following is an example of a phenotype?

• bb

• blue eyes

Which of the following genotypes are purebred?

• Pf

• PP

• Pp

• pP

If you are purebred dominant for a trait, your genotype would be?

• Tt

• tt

• TT

• tall

Which of these is homozygous recessive?

• Rr

• RR

• rR

• rr

The different forms of a gene?

• alleles

• proteins

• atoms

• trait factors

This trait always shows up in an organism when the allele is present?

• dominant allele

• probability

• codominance

• recessive allele

This trait is hidden whenever the dominant allele is present?

• dominant allele

• recessive allele

• codominance

• Punnett Square

A chart that shows all of the possible combinations of alleles that can result from a genetic cross?

• dominant allele

• probability

• codominance

• Punnett square

An organism's physical appearance or visible traits (what it looks like)?

• phenotype

• genotype