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Figure 13.1
-A space probe returns with a culture of a microorganism found on a distant planet. Analysis shows that it is a carbon-based life-form that has DNA. You grow the cells in 15N medium for several generations and then transfer them to 14N medium. Which pattern in Figure 13.1 would you expect after one round of DNA replication if the DNA was replicated in a conservative manner?
Critical Period
A specific time interval in an organism's life during which the presence or absence of certain experiences can have profound and lasting effects on its development.
Cataracts
A medical condition where the lens of the eye becomes progressively opaque, resulting in blurred vision and, if untreated, blindness.
Visual Perception
The capability to understand the immediate surroundings through the analysis of information provided by visible light.
Epigenetic Effect
Changes in gene expression caused by mechanisms other than changes in the underlying DNA sequence.
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