Simple Punnett Square

Which of the following genotypes is homozygous DOMINANT?

• AA

• aa

• Aa

• None

If dimples are dominant to no dimples...which is the correct genotype for the phenotype "no dimples"?

• DD

• dd

• Dd

• No dimples type

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

Solve the Punnett Square...

Gray fur is dominant to white fur in cats. A (homozygous) gray mother cat mates with a white father cat. What percentage of the offspring will be gray?

• 0%

• 25%

• 50%

• 75%

• 100%

Tags

NGSS.HS-LS3-1

Solve the Punnett Square...

Gray fur is dominant to white fur in cats. A heterozygous gray father cat mates with a heterozygous gray mother cat. Select the correct answers/percentages from your punnett square.

• 25% GG, 50% Gg, 25% gg

• 50% GG, 50% gg, 0% Gg

• 100% Gg, 0% GG, 0% gg

• 100% GG, 0% Gg, 0% gg

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

Complete the punnett square

a

b

c

d

T t top row

T t bottom row

t t

T T

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

According to this Punnett square​ (a)   of the offspring will be homozygous dominant, ​ (b)   Of the offspring will be heterozygous, and the remaining 25% will be homozygous ​ (c)   . As for the phenotypes, ​ (d)   of the flowers will be ​ (e)   .

• 25%

• 50%

• recessive

• 75%

• pink

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 (a)  

• tt

• Tt

• Bb

• TT

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

What is the probability of a purple-horned unicorn if a heterozygous pink-horned unicorn is crossed with a heterozygous pink-horned unicorn? (a)  

• 0%

• 25%

• 50%

• 75%

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

NGSS.HS-LS3-3

Fill in the missing genotypes

a

b

BB

bb

Bb

bB

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

According to this Punnett square ​ (a)   Of the offspring will be homozygous dominant, ​ (b)   Of the offspring will be heterozygous, and the remaining 25% will homozygous ​ (c)   . As for the phenotypes, ​ (d)   Of the flowers will be ​ (e)   .

• 25%

• 50%

• recessive

• 75%

• pink

• 100%

• White

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2