Non-Mendelian Genetics Review

Front

What is co-dominance in genetics?

Back

Co-dominance is a type of inheritance pattern where both traits are fully expressed in the offspring. For example, in a flower with red and white alleles, the offspring may have petals that are both red and white.

Front

What does an open circle represent in a pedigree chart?

Back

An open circle represents a Not Affected Female in a pedigree chart.

Front

What does a shaded circle represent in a pedigree chart?

Back

A shaded circle represents an Affected Female in a pedigree chart.

Front

What does a shaded square represent in a pedigree chart?

Back

A shaded square represents an Affected Male in a pedigree chart.

Front

What does a pedigree chart show?

Back

A pedigree chart shows the inheritance patterns of traits across generations in a family.

Front

How many generations are typically shown in a pedigree chart?

Back

A pedigree chart can show multiple generations, often 3-4 generations are depicted.

Front

What is the genotype for a brown mouse in incomplete dominance?

Back

The genotype for a brown mouse is Bb, where B represents the black allele and b represents the white allele.

Front

What is incomplete dominance?

Back

Incomplete dominance is a genetic situation in which one allele does not completely dominate another allele, resulting in a new phenotype.

Front

What is the difference between dominant and recessive traits?

Back

Dominant traits are expressed in the phenotype even if only one copy of the allele is present, while recessive traits are only expressed when two copies of the allele are present.

Front

What is a phenotype?

Back

A phenotype is the observable physical or biochemical characteristics of an organism, determined by both genetic makeup and environmental influences.