8.2 Terminology, Punnett Squares

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

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

Which of the following genotypes is homozygous dominant?

• A
• Aa
• AA
• aa

In a flowering plant species, red flower color (R) is dominant over white flower color (r). What is the genotype of any red-flowering plant resulting from this species?

• rr
• R
• RR
• RR or Rr

How many alleles does an individual have for each trait?

• 1
• 2
• 3
• 4

Which genotype(s) would lead to the phenotype of yellow seeds?

• aa

• Aa

• AA

• AA or Aa

Which of the following is true about both parents in this Punnet square?

• Both are homozygous dominant.

• Both are homozygous recessive.

• Both are heterozygous.

• Both have blue eyes.