Punnett Square Practice

In pea plants, the tall allele is dominant to the short allele. What key would demonstrate this?

• Tall = T
  Short = S
• Tall = T
  Short = t
• Tall = t
  Short = T
• Tall = TT
  Short = tt

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

A heterozygous yellow pea plant's genotype would be:

• YY
• yy
• Yy
• Yg

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

Homozygous Dominant:

• Aa
• AA
• aa
• aA

Tags

NGSS.HS-LS3-1

Homozygous recessive:

• GG
• gg
• Gg
• gG

What would the genotypes be?

• TT, TT, Tt, Tt
• TT, Tt, Tt, tt
• Tt, Tt, tt, tt
• None of the above

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

A heterozygous long-tusked elephant is crossed with a homozygous recessive short-tusked elephant. What is the probability of the offspring having short tusks? (T= long, t=short)

• 0%
• 25%
• 50%
• 75%

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

NGSS.HS-LS3-3

A homozygous dominant long-tusked elephant is crossed with a homozygous recessive short-tusked elephant. What is the probability of the offspring having short tusks? (T=long, t=short)

• 0%
• 25%
• 50%
• 75%

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

• 0%
• 25%
• 50%
• 75%

Georgette wants to breed her pet phoenixes, but she isn't sure if the babies will burst into blue flames or red flames. Her documents show that her female phoenix is homozygous dominant for red flames, while her male phoenix is homozygous recessive for blue flames. What color flames will the babies have? (N= red, n=blue)

• Red
• Blue
• Purple
• 50% Red, 50% Blue

Leonardo bet his friend Olivet that two heterozygous green-eyed sea monsters could not have a recessive blue-eyed baby sea monster. Olivet said they can have a blue-eyed sea monster.
Who wins the bet? (G- green, g-blue)

• Leonardo
• Olivet
• Both
• Neither

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2