Monohybrid Crosses (complete dominance)

The physical expression of a genetic trait is called a

• mutation

• genotype

• crossing over

• phenotype

Tags

NGSS.HS-LS3-1

The following items are examples of __________.

Items: eye color, hair color, height

• homozygous alleles

• genotype

• heterozygous alleles

• phenotype

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-3

having two of the same genes for the trait (sometimes called purebred).

• homozygous
• hetrozygous
• protein
• chromosome

Tags

NGSS.HS-LS3-1

having two different genes for a trait (sometimes called hybrid).

• protein
• homozygous
• heterozygous
• genotype

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

An allele whose trait only shows up when no dominant allele is present.

• hidden allele
• dominant allele
• recessive allele
• present allele

Which of the following genotypes would be considered heterozygous?

• BB
• gg
• Ff
• TT

Which of the following alleles is homozygous recessive?

• Tt
• tt
• TT
• T

Tags

NGSS.HS-LS3-1

T - tall and t = short
In the punnett square below, what belongs in the missing square

• tt
• Tt
• Bb
• TT

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-3

Two brown eyed parents (Bb) have a baby. What is the chance the baby is blue eyed? (B=brown eyes and b=blue eyes)

• 0 %

• 25%

• 50%

• 75%

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-3

Which of the following is a phenotype?

• BB
• Bb
• bb
• Blue eyes

Tags

NGSS.HS-LS3-3

NGSS.HS-LS3-2