Punnett Square Practice Monohybrid

If two purebred species (BB) are crossed, what percentage of their offspring would be BB?

• 25%

• 50%

• 75%

• 100%

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

Two brown eyed parents (Bb) have a baby. What is the chance the baby is blue eyed? (B=brown eyes and b=blue eyes)

• 0 %

• 25%

• 50%

• 75%

Purple is dominant to white. A heterozygous purple flower is crossed with a white flower. What are the genotypes and phenotypes of the offspring?

• 100% Pp (purple)

• 50% Pp (purple); 50% pp (white)

• 75% Pp (purple); 25% pp (white)

• 25% PP, 50% Pp, 25% pp
  75% purple, 25% white

Tags

NGSS.MS-LS3-2

In Mendel's pea plants, the homozygous recessive phenotype was white flowers.  If Mendel crossed two homozygous recessive pea plants, what color flowers would be seen in the offspring?

• white and purple

• white 

• purple

• lavendar

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

These are diagrams used by scientists to determine a particular trait.

• Punting footballs

• Punnett squares

• Punnett circles

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

What percentage of the offspring in the punnett square are shown as a hybrid?

• 100%

• 75%

• 50%

• 25%

In a certain species of plant, the color purple (P) is dominant to the color white (p).
According to the Punnett Square, what is the probability of an offspring being purple?

• 25%

• 0%

• 100%

• 50%

Tags

NGSS.HS-LS3-1

What allele combination should go in the missing box?

• AA

• Aa

• aa

• none of these

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

What is the genotype of the missing parent?

• BB

• Bb

• bb

What belongs in the last box?

• RR

• Rr

• rr

• ff