Punnett Square - Terms Quiz

What is an allele?

• Different versions of a gene

• Physical traits

• Combination of alleles

• Trait that is always expressed

What is a genotype?

• Different versions of a gene

• Physical traits

• Combination of alleles

• Trait that is always expressed

What are phenotypes?

• Different versions of a gene

• Physical traits

• Combination of alleles

• Trait that is always expressed

What is a dominant trait?

• Different versions of a gene

• Physical traits

• Combination of alleles

• Trait that is always expressed

What does recessive mean?

• Different versions of a gene

• Physical traits

• only expressed if the organism has 2 copies of the allele (rr)

• Trait that is always expressed (Rr, RR)

What does homozygous mean?

• Same

• Different

• Combination of alleles

• Trait that is always expressed

What does heterozygous mean?

• Same

• Different

• Combination of alleles

• Trait that is always expressed

What is homozygous dominant?

• Same copies of the allele (HH, GG)

• Different copies of the allele (Hh, Gg)

• Combination of alleles

• Same copies of the allele (hh,gg)

What is homozygous recessive?

• Same copies of the allele (HH, GG)

• Different copies of the allele (Hh, Gg)

• Combination of alleles

• Same copies of the allele (hh,gg)

What do Punnett squares predict?

• Different versions of a gene

• Physical traits

• Combination of alleles

• Probability of offspring's traits