Dihybrid Cross Quiz

What does 'dihybrid' refer to in the context of genetic crosses?

• Crossing one organism with two traits

• Crossing two organisms with two traits

• Crossing two organisms with one trait

• Crossing two organisms with identical traits

In a dihybrid cross, what does 'heterozygous' mean?

• Having no alleles for a trait

• Having two identical alleles for a trait

• Having more than two alleles for a trait

• Having two different alleles for a trait

How many squares are in a Punnett Square for a dihybrid cross?

• 4

• 8

• 12

• 16

What is the purpose of using different colors in the Punnett Square?

• To confuse the viewer

• To differentiate between different traits

• To make it look attractive

• To highlight dominant traits only

When filling out a Punnett Square, which letter is written first?

• The letter with the loop

• Any letter

• Uppercase letter

• Lowercase letter

What does a capital 'R' represent in the context of seed shape?

• Wrinkly

• Yellow

• Round

• Green

What phenotype is represented by two lowercase 'r's and two lowercase 'y's?

• Wrinkly and yellow

• Wrinkly and green

• Round and green

• Round and yellow

How many round yellow peas are there in the phenotype ratio?

• 12

• 9

• 6

• 3

What is the phenotype ratio of a dihybrid cross?

• 1:3:3:9

• 3:1:1:3

• 3:3:1:9

• 9:3:3:1

Which phenotype is the least common in the dihybrid cross?

• Round and yellow

• Round and green

• Wrinkly and yellow

• Wrinkly and green