Punnett Square

What is the primary purpose of a Punnett Square?

• To predict what will be the genetic outcome.

• To measure the probability of a genetic outcome.

• To determine the exact genetic makeup of an offspring.

• To identify all possible genetic traits.

When setting up a Punnett Square, where are the parental genotypes placed?

• Both on the top row.

• Both on the left column.

• One on the top row and the other on the left column.

• Inside the four quadrants.

In a simple Punnett Square with four quadrants, what percentage chance does each quadrant represent for a specific genotype to result in the offspring?

• 10%

• 25%

• 50%

• 75%

In the first example (Gg x gg), what is the probability of an offspring having the genotype Gg?

• 25%

• 50%

• 75%

• 100%

In the second example (Gg x Gg), what is the phenotypic ratio for green eyes (dominant) to blue eyes (recessive)?

• 1:2:1

• 1:1

• 3:1

• 2:1