3. Extensions to Mendelian Inheritance

The presence of more than two alternative forms of a gene in a population is denoted by the term:

Forms of inheritance that are determined by more than two alleles are referred to as:

Which of the following best explains why the relationship between genes and traits is often complicated in humans, particularly in the context of variations of dominance?

In the context of variations of dominance, which statement best describes a recessive allele?

Traits can be dominant, which means they can be seen and are capable of masking a different trait. Which term best describes such traits?

Which genetic phenomenon is described when one gene has several different forms, resulting in more than two phenotypes?

In the context of variations of dominance, which statement best defines a dominant allele?

Which term describes a genotype that contains two different alleles at a given locus?

In the ABO blood group system (a variation of dominance known as codominance), what genotype would a person with type AB blood have?

A diploid individual carrying two different alleles at a given gene locus is called:

A trait that exhibits continuous variation (such as human height) is called a(n) ______ trait.

In the context of variations of dominance, which term describes an allele that is phenotypically expressed only when present in the homozygous state?

Which definition best describes polygenic traits?

In the context of variations of dominance, the phrase "more than 2 versions of a gene" refers to which genetic concept?

If the phenotype reflects the activities of more than one gene, it is called a ______ trait.