What Is the Major Principle of the Single-Origin Theory

question 25

Multiple Choice

What is the major principle of the single-origin theory?

• A) Neandertals became extinct.
• B) Neandertals evolved into modern humans.
• C) Neandertals still live among us today.
• D) The early modern Homo sapiens became extinct.

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Definitions:

Beak Size

A specific trait of birds and some other animals, referring to the dimensions of the beak, which can vary widely among species and is often subject to natural selection.

Teosinte Branched 1

A plant gene responsible for the difference in plant architecture between modern maize and its wild ancestor, teosinte.

Prolamin Box Binding Factor

A transcription factor that binds to the prolamin box, a specific DNA sequence found in the promoters of seed storage protein genes in plants.

IFG1

Insulin-like growth factor 1, a protein that plays a critical role in childhood growth and continues to have anabolic effects in adults.