Punnett Squares Review

If the dominant trait is having freckles (F) and the recessive trait is no freckles (f), which allele combination(s) below would represent a person who has freckles? (select all that apply)

• FF

• Ff

• ff

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

What belongs in the last box?

• RR

• Rr

• rr

• ff

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

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-LS3-2

Look at the punnett square shown. What allele pair would replace the "?"

• WW

• Ww

• ww

Both parents in this Punnet square

• are homozygous dominant
• are homozygous recessive
• are heterozygous
• have blue eyes

Tags

NGSS.HS-LS3-1

What is the probability & phenotype of the offspring? (A-Brown hair; a-blond hair)

• 50% Brown Hair and 50% Blond Hair

• 25 % Brown Hair and 75% Blond Hair

• 75 % Brown Hair and 25% Blond Hair

• 0% Brown Hair and 100% Blond Hair

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

NGSS.HS-LS3-3

Fill in the Yellow Box

• Bb

• BB

• bb

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

Which of the following allele pairs is heterozygous?

• RR

• Qq

• ss

What allele combination should go in the missing box?

• AA
• Aa
• aa
• none of these

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

B = brown fur  b = white fur
In the punnett square, what is the probability for white fur? 

• 0%
• 25%
• 50%
• 75%

Tags

NGSS.HS-LS3-3