Based on the Classic Experiments of Creighton and McClintock with Maize,crossing

question 21

Multiple Choice

Based on the classic experiments of Creighton and McClintock with maize,crossing over involves a physical exchange between chromatids.What particular chromosomal characteristic allowed their experiments to succeed?

• A) colored bands along the lengths of a chromosome
• B) an extra chromosome
• C) a missing chromosome
• D) three chromosomes with identical structure
• E) a chromosome with a unique cytological marker

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Definitions:

Token Economy

A form of behavior modification that uses tokens or symbols as rewards for performing desired behaviors which can be exchanged for privileges or treats.

Patients' Anxiety

The feeling of worry, nervousness, or unease that patients may experience related to their health, medical procedures, or hospital environment.

Systematic Desensitization

A behavioral therapy technique used to reduce phobic or anxiety responses by gradually exposing the person to the anxiety-producing stimulus while in a state of relaxation.

Anxiety-Triggering Situations

Scenarios or contexts that elicit or increase feelings of anxiety in individuals.