Punnet Squares

Which of the following is a phenotype?

• Aa
• red hair
• heterozygous
• DNA

In a Punnett square, dominant alleles are represented by a:

• no letters

• lowercase letter

• both lower and upper case letters

• capital letter

In a Punnett square, recessive alleles are represented by a:

• capital letters

• lower case letters

• both lower and upper case letters

• no letters

G = green, g = yellow
The genotype for a yellow plant is...

• GG
• Gg
• gg
• all of the choices result in yellow

Tags

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

In rabbits, black fur (B) is dominant over brown fur (b). If a rabbit has brown fur, what can you conclude about its genotype?

• It is BB.
• It is Bb
• It is brown
• It is bb.

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

What percent of offspring from this cross of parents will have the recessive genotype trait?

• 25%

• 50%

• 75%

• 100%

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

NGSS.HS-LS3-3

Both parents in this Punnet square are:

• homozygous dominant

• homozygous recessive

• heterozygous dominant

• heterozygous recessive

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

The dominant phenotype trait is?

• yellow pea seeds

• green pea seeds

• there is no dominant seed

• Jolly green giant

Tags

NGSS.HS-LS3-1

To express a recessive trait the offspring must be

• homozygous dominant

• heterozygous

• alleleerific

• homozygous recessive

Tags

NGSS.HS-LS3-1