Non-Mendelian Inheritance

Non-Mendelian Inheritance

Multiple Choice

Which is an example of heterozygous?

• Bb (one brown allele and one blue allele)
• bb (two blue alleles)
• AA (two identical alleles)

Multiple Choice

Which is an example of homozygous recessive?

• BB
• bb
• Aa
• AA

Multiple Choice

Dominance is defined as...

• where one allele masks the expression of another.

• the process by which traits are inherited from parents to offspring.
• the interaction between different species in an ecosystem.
• the study of how organisms adapt to their environment.

Multiple Choice

Recessive can be defined as...

• A trait that can be expressed with just one recessive allele.
• A trait that is always expressed regardless of allele combination.
• A dominant trait that masks the expression of recessive traits.
• A trait that is expressed only when two recessive alleles are present.

Multiple Choice

What is a genotype?

• A genotype is the environment in which an organism lives.
• A genotype is the genetic makeup of an organism.
• A genotype refers to the physical appearance of an organism.
• A genotype is a type of protein.

Multiple Choice

What is the phenotype?

• The environment in which an organism lives.
• The process of evolution over time.
• Genetic makeup of an organism.
• Observable characteristics of an organism.

Multiple Choice

Co-dominance is...

• Co-dominance is when both alleles in a gene pair are fully expressed in the phenotype.
• Co-dominance is when both alleles are blended together in the phenotype.
• Co-dominance is when neither allele is expressed in the phenotype.
• Co-dominance is when one allele completely masks the other.

Multiple Choice

Incomplete dominance is when...

• Incomplete dominance occurs only in homozygous individuals.
• Incomplete dominance results in one allele completely masking the other.
• Incomplete dominance is when the phenotype of a heterozygote is a blend of the phenotypes of both alleles.
• Incomplete dominance leads to a phenotype that is identical to one of the alleles.

Multiple Choice

What trait is an example of multiple alleles?

• Color blindness
• ABO blood group system
• Sickle cell trait
• Rh factor

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