Monohybrid Crosses Practice

Based on the genotypes present in this Monohybrid Punnett square, which eye color is dominant?

• brown

• blue

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

Based on the results in the monohybrid punnett square, what is the percent chance of having a child with blue eyes?

• 75%

• 50%

• 25%

• 0%

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

Based on the results in the monohybrid punnett square, what is the genotypic ratio?

• 1:2:1

• 0:2:2

• 0:0:4

• none

What is the term for a cross that involves just one trait, such as pod shape?

• test cross

• dihybrid cross

• monohybrid cross

• homozygous cross

What are the possible genotypes for this cross?

• TT=25%, Tt=50%, tt=25%

• all tall

• TT=75%, tt=25%

• Tt=100%

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-3

In cacti, long arms (A) are dominant to short arms (a). Suppose 2 heterozygous cacti are crossed. What percentage of their offspring are expected to have short arms?

• 0%

• 25%

• 75%

• 100%

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

Which of the following genotypes is homozygous dominant?

• Bb

• dd

• G

• RR

Which of the following genotypes would be considered homozygous recessive?

• RR

• Bb

• dd

• g

Which of the following would produce a recessive phenotype?

• hh

• Rr

• Ww

• BB

If your genotype is Bb, then you can only pass a B or b separately to your child but you can't pass both. This is known as the ________.

• Law of Dominance

• Law of Segregation

• Law of Independent Assortment