When DNA Is Heated to Just Below Boiling (90^oC -

question 19

Multiple Choice

When DNA is heated to just below boiling (90^oC - 95^oC) ,

• A)the sugar phosphate backbone of the DNA strands breaks.
• B)the sugar, phosphate and base come apart in each nucleotide.
• C)the helix unwinds but hydrogen bonds between the bases remain intact.
• D)the two DNA strands separate completely.
• E)Nothing happens until the boiling point is reached (100^oC).

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Definitions:

Internal Working Model

A mental model that children construct as a result of their experiences with their caregivers and that they use to guide their interactions with their caregivers and others.

Symbolic Capacities

The ability to understand and use symbols or symbolic thought, including language, numbers, and images.

Reciprocal Emotional Relationship

describes an interpersonal connection where emotional expressions and experiences are shared and influence each other mutually.

Attachment Statuses

Categories that describe patterns of behavior in relationships reflecting the emotional bond between individuals.