A Shared Ancestral Character Is

question 21

Multiple Choice

A shared ancestral character is

• A) a character that originated in an ancestor of the taxon.
• B) shared by all mammals but not found in their ancestors.
• C) an evolutionary novelty unique to a clade.
• D) an outgroup character.

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Definitions:

Klinefelter Syndrome

A genetic condition affecting males, characterized by an extra X chromosome, which can result in physical, developmental, and fertility issues.

Tay-Sachs Disease

A fatal genetic neurological disorder.

Turner Syndrome

A chromosomal disorder in females characterized by the partial or complete absence of one X chromosome, leading to various developmental issues.

Testosterone

A male sex hormone produced mainly by the testes.