Unit 3 Genetics Quiz Review

How do we indicate Dominant alleles?

• Uppercase Letters

• Lower case letters

A person with the alleles Bb will show which trait?

• The dominant trait

• The recessive trait

• A mix of both traits

A person with the alleles bb will show which trait?

• The dominant trait

• The recessive trait

Which set of alleles is heterozygous?

• Dd

• AB

• RR

• tt

Which of the following is homozygous?

• XY

• gg

• Pp

• AA

An allele that is masked when a dominant allele is present. The "weaker" gene. 

• Dominant Allele
• Recessive Allele

An organism’s genetic makeup or allele combination.

• Genotype
• Phenotype
• Beanotype
• Notype

An organism’s physical appearance, or visible traits. 

• Genotype
• Phenotype
• Beanotype
• Notype

Scientists use capital and small letters to show the _____ of an organism. 

• genotype
• genetic disorder
• phenotype
• genome

In a certain species of plant, the color purple (P) is dominant to the color white (p).
According to the Punnett Square, what is the probability of an offspring being purple?

• 25%
• 0%
• 100%
• 50%