What Experiment Led to the Identification of the DSCR Down

question 36

Multiple Choice

What experiment led to the identification of the DSCR Down Syndrome Critical Region ?

• A)an extra DSCR was injected into yeast cells
• B)transgenic humans were developed that had a duplicated DSCR
• C)a mouse model was developed lacking the DSCR
• D)cancer cells were sequenced to identify the VEGF gene
• E)a mouse model was developed trisomic for the DSCR

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Definitions:

Expressive Behaviors

Actions or gestures that convey emotions, feelings, or attitudes without the use of verbal communication.

Joy/Happiness

A state of well-being and contentment characterized by feelings of pleasure and satisfaction.

Reactive, Difficult Infants

Infants who are particularly likely to react negatively to new situations or stimuli and are generally more challenging to soothe or calm.

Temperamental Traits

Temperamental traits refer to basic aspects of an individual’s personality, such as emotionality or sociability, which are believed to be genetically influenced and present from early life.