Of the Different Sources of Genetic Variability Which on Could

question 48

Multiple Choice

Of the different sources of genetic variability which on could be defined as permanent,transmissible changes to the DNA coding sequence that are often caused by outside environmental factors?

• A) independent assortment
• B) crossing over
• C) random fertilization
• D) mutation

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Definitions:

Neurotransmitter

Chemicals in the brain that transmit signals from one neuron to another, playing key roles in mood, thought, and behavior.

Synaptic Vesicle

A small organelle within a neuron that stores neurotransmitters for release at the synaptic cleft.

Latin Word

A word from Latin, an ancient language that has influenced many modern languages, including English, Spanish, and French.

Neuron

A nerve cell that transmits information through electrical and chemical signals, playing a critical role in the functioning of the nervous system.