PCR Has Opened the Door to Analysis of Ancient DNA-DNA

question 4

Essay

PCR has opened the door to analysis of ancient DNA-DNA taken from long-dead organisms. The most useful DNA fragments in such cases typically come from mitochondrial DNA. Why do you think that is so?

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Definitions:

Postsynaptic Membrane

The region of a synapse that receives and responds to neurotransmitter signals from a presynaptic cell.

Transmitter Metabolism

The process by which neurotransmitters are synthesized, released, and broken down by the body.

Fetal Alcohol Spectrum Disorder

A range of effects that can occur in an individual whose mother drank alcohol during pregnancy, including physical, behavioral, and learning problems.

Spacing Between Eyes

The distance between the eyes, which is important for binocular vision and depth perception.