If DNA Is Heated to 95°C, the Bonds Between Complementary

question 38

Multiple Choice

If DNA is heated to 95°C, the bonds between complementary strands break, resulting in two single strands of DNA. In this process, which bases will separate first because they have less hydrogen bonds between them?

• A) adenine and cytosine
• B) guanine and thymine
• C) guanine and cytosine
• D) adenine and thymine

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Definitions:

Negative Affectivity

The state or trait tendency to experience nervousness, fear, anger, sadness, contempt, or guilt.

Nervousness

A feeling of agitation or anxiety, often experienced in anticipation of a stressful event or situation.

Behavioral Inhibition

In late infancy and childhood, a tendency towards shyness, manifested as avoidance or distress in new situations. This trait is linked to high reactivity (including irritability in response to new sensory stimulation) in early infancy.

Kindling-Sensitization Model

A theory suggesting that repeated exposures to stressful events may lead to an increased sensitivity to stress and eventually contribute to the onset of psychiatric disorders.