Which of These First Appeared in the Neolithic Age

question 33

Multiple Choice

Which of these first appeared in the Neolithic Age?

• A) upright posture
• B) hunting
• C) speech
• D) farming

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Definitions:

Gene Effect

The influence that a gene has on the phenotype or traits of an organism, including physical characteristics and behaviors.

Codominant

In genetics, a condition where two different alleles for a genetic trait are expressed simultaneously without one being recessive to the other.

Incomplete Dominance

A genetic phenomenon where the phenotype of a heterozygote is intermediate between the phenotypes of the two homozygotes.

Recessive

A genetic trait that is expressed only when two copies of the gene carrying the trait are present, as opposed to a dominant trait where only one copy is necessary.