Semester 2 Final Exam

According to Mendel, AA and Aa always show up as

• The recessive trait
• The dominant trait
• A blend of the dominant and recessive traits

What is true about these two brothers that have brown eyes? One has genotype BB the other Bb. (Brown is dominant to blue)

• They have the same genotype and phenotype
• The have different genotypes and phenotypes
• They have the same genotypes but different phenotypes
• The have different genotypes but the same phenotype

Which of the following genotypes is homozygous dominant?

• A
• Aa
• AA
• aa

Which of the following genotypes is heterozygous?

• A
• Aa
• AA
• aa

If a trait shows incomplete dominance, this means that the 3rd phenotype will....

• Be a blend of both traits
• Show both traits at the same time

Aa, DD, Bb, yy are all examples of

• Genotypes
• Phenotypes

If a trait shows codominance, this means that the 3rd phenotype will....

• Be a blend of both traits
• Show both traits at the same time

On a pedigree, what does a square represent?

• Male
• Female
• Siblings
• Married

If Long hair (H) is dominant to short hair (h) in rabbits, how many of the following offspring will have long hair if 2 heterozygous parents are crossed?

• 1
• 2
• 3
• 4
• none

Which of the following is example of a behavioral adaptation?

• dancing to attract a mate
• having a stronger beak to open hard seeds
• plants in dry climates can store water in their leaves
• camouflage