Punnett Square and Alleles

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

• WW

• Ww

• ww

Tags

NGSS.HS-LS3-1

Look at the punnett square. What is the probability that the offspring would have homozygous alleles for the trait?

• 100%

• 75%

• 50%

• 25%

• 0%

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

Both parents in this Punnet square

• are homozygous dominant

• are homozygous recessive

• are heterozygous

• have blue eyes

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

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

Fill in the Yellow Box

• Bb

• BB

• bb

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

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-LS3-1

NGSS.HS-LS3-2

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 Box 4?

• Y

• YY

• Yy

• yy

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

Which of the following allele pairs is heterozygous?

• RR

• Qq

• ss