Vocabulary Punnett Squares

The following items are examples of __________.

Items: eye color, hair color, height

• homozygous alleles

• genotype

• heterozygous alleles

• phenotype

Which of the following genotypes would be considered heterozygous?

• BB
• gg
• Ff
• TT

Which of the following alleles is homozygous recessive?

• Tt
• tt
• TT
• T

An allele whose trait always shows up in the organism when the allele is present.

• recessive allele
• dominant allele
• hidden allele
• present allele

T - tall and t = short
In the punnett square below, what belongs in the missing square

• tt
• Tt
• Bb
• TT

R- round

r-wrinkled

What is the genotype for wrinkled?

• RR

• rr

• Rr

How much of the offspring pictured have a heterozygous result?

• 25%

• 50%

• 75%

• 100%

B = brown fur  b = white fur
In the punnett square, what is the probability for white fur? 

• 0%
• 25%
• 50%
• 75%

What allele combination should go in the missing box?

• AA
• Aa
• aa
• none of these

AA and Aa always show up as

• dominant
• recessive