Genetics/Punnett Squares Review

------is the combination of two alleles that are different from one another.

• homozygous

• heterozygous

• phenotype

• trait

The letters that make-up the genetic code for a trait

• genotype

• heterozygous

• phenotype

• trait

Tags

NGSS.HS-LS3-1

---- Is the combination of two alleles that are the same

• genotype

• homozygous

• phenotype

• trait

----is the type of gene that always shows itself when present

• genotype

• homozygous

• phenotype

• dominant

The physical appearance of the allele combination the offspring receives

• genotype

• homozygous

• phenotype

• dominant

Look at the Punnett Square. What's the probability of having the recessive offspring?

• 100%

• 75%

• 50%

• 25%

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-3

What are the parents' genotypes?

• Homozygous for brown eyes

• Heterozygous for brown eyes

• Homozygous for blue eyes

• Heterozygous for blue eyes

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

What is the phenotype for the recessive trait?

• brown eyes

• green eyes

• blue eyes

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

A type of gene that can be hidden is called

• genotype

• recessive

• dominant

• allele

A section of the DNA strand that determines a specific trait

• gene

• trait

• chromosome

• allele

Tags

NGSS.HS-LS1-1

NGSS.HS-LS3-1