Which of These Precautions Would Have Been Most Important to Insuring

question 40

Multiple Choice

Which of these precautions would have been most important to insuring the validity of the results?

• A)Chlorella in the three cultures were genetically identical.
• B)Roughly equal numbers of each strain of Chlorella were present in the reintroduction mixture.
• C)The Chlorella cultures were free of bacteria.
• D)The P. bursaria culture was free of bacteria.
• E)The Chlorella DNA contained no introns.

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Definitions:

Monozygotic Twins

Twins that are genetically identical because they were formed from a single fertilized egg that split into two.

Genetic Profile

A unique code of genes that an individual inherits from their parents, which can determine certain characteristics and susceptibility to diseases.

Ventral Striatum

A part of the brain involved in the reward system, playing a key role in motivation, emotion, and reinforcement learning.

Serotonin Levels

Concentrations of the neurotransmitter serotonin in the body, which can affect mood, emotion, sleep, and appetite.