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

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

What phenotype would result from crossing a homozygous dominant purple-flowered pea plant with a homozygous recessive white-flowered pea plant?

• Pp
• Purple
• White
• PP and pp

If brown eyes are dominant over blue eyes, what would be the parent genotypes if two heterozygous brown eyed persons were crossed?

• BB and bb

• BB and Bb

• BB, Bb, and bb

• bb and Bb

Tags

NGSS.HS-LS3-1