Genes and Punnett Squares

Cross a heterozygous tall male plant with a heterozygous tall female plant. What is the % of homozygous tall?

• 0%

• 25%

• 50%

• 100%

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

Cross a heterozygous tall male plant with a heterozygous tall female plant. What are all the possible genotypes?

• Tt, Tt, Tt, tt

• TT, TT, TT, TT

• TT, Tt, Tt, tt

• TT, TT, tt, tt

Tags

NGSS.HS-LS3-1

Farsightedness is dominant over normal vision. The father is homozygous dominant for this trait. The mother is homozygous recessive. What is the father's genotype?

• Ff

• FF

• ff

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

Farsightedness is dominant over normal vision. The father is homozygous dominant for this trait. The mother is homozygous recessive. What is the mother's genotype?

• Ff

• FF

• ff

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

Fill in the missing genotypes

a

b

bB

BB

Bb

bb

Tags

NGSS.MS-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

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

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

Complete the punnett square

a

b

c

d

T T

T t - bottom row

t t

T t - top row

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