Maternal-Effect Patterns Result When Nuclear Gene Products Controlled by the Maternal

question 36

Short Answer

Maternal-effect patterns result when nuclear gene products controlled by the maternal genotype condition the egg and influence early development.Give two examples of maternal effects.

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Definitions:

Dominant-Recessive Inheritance

A genetic transmission pattern where an inherited trait is dictated by the presence of just one dominant gene, overshadowing a recessive gene when both are present.

Incomplete Dominance

A genetic inheritance pattern in which both genes are expressed in the phenotype.

Polygenic Inheritance

Occurs when a trait is a function of the interaction of many genes, such as with height, intelligence, and temperament.

Genomic Imprinting

An epigenetic phenomenon by which certain genes are expressed in a parent-of-origin-specific manner.