Heredity Vocab Review

How many alleles (letters) do each person carry for a trait?

• 1
• 2
• 3
• 4

Dominant alleles are represented by a:

• Male gene
• lowercase letter
• recessive trait
• capital letter

Aa, DD, bB, yy are all examples of

• genotypes
• phenotypes

In a heterozygous genotype, the ___________ allele takes over in the phenotype.

• recessive
• dominant
• lower case letter
• both 

What you see, or the physical appearance.

• Genotype
• Phenotype
• Homozygous
• Heterozygous

The blending of two traits in which one is not completely dominant over the other is known as ---

• Homozygous

• Incomplete Dominance

• Codominance

• Heterozygous

Which of the following is homozygous recessive?

• Tt
• tt
• TT
• T

B = brown eyes
b = blue eyes
What is true about these two brothers that have brown eyes?
One has genotype BB the other Bb.

• they have same phenotype and genotype
• they have different genotypes and phenotypes
• they have same phenotype but different genotypes
• they have same genotype but different phenotypes

aa always shows up as

• dominant
• recessive

What ratio of the offspring from the cross shown will be homozygous recessive for the  trait of tallness? 

• 0 in 4
• 1 in 4
• 2 in 4
• 4 in 4