Punnett Squares

Which of the following alleles is homozygous (purebred) recessive?

• Tt
• tt
• TT
• t

Dominant alleles are represented by a:

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

What is a punnett square?

• graph used to predict the possible genotypes of offspring in a given cross
• a graph used to predict the possible birth rate of offspring.
• a graph used to predict the possible behavioral characteristics an offspring could have
• None of the above

AA and Aa always show up as

• dominant
• recessive

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

• recessive
• dominant
• lower case letter
• both 

Which of the following is a phenotype?

• Aa
• red hair
• heterozygous
• DNA

Aa, DD, bB, yy are all examples of

• genotypes
• phenotypes

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

• tt
• Tt
• Bb
• TT

In a punnet square where are the parent alleles written?

• Top and inside the boxes
• Only on the left and right side of the boxes. 
• outside of the boxes (top and left side)
• All on the top side of the boxes

What is the dominant trait?

• yellow pea seeds
• green pea seeds
• there is no dominant seed
• Jolly green giant