Please Use the Following Information to Answer the Question(s) Below

question 16

Multiple Choice

Please use the following information to answer the question(s) below.
The unlettered circle at the top of Figure 9.1 shows a diploid nucleus with four chromosomes that have not yet replicated. There are two pairs of homologous chromosomes, one long and the other short. One haploid set is black, and the other is gray. The circles labeled A-E show various combinations of these chromosomes. Figure 9.1
-What is the correct chromosomal condition for a nucleus at prophase of mitosis?

• A) A
• B) B
• C) C
• D) D
• E) E

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Definitions:

Primary Reinforcer

A primary reinforcer is a stimulus that is naturally rewarding and satisfies a biological need, such as food or water.

Stimulus Discrimination

The learned ability to distinguish between similar stimuli and respond appropriately to each one.

Green Light

An expression meaning to give approval to proceed with a project or action.

Lever Pushing

A task used in experimental psychology and behavioral neuroscience to study the principles of operant conditioning by training an animal to press a lever to receive a reward.