Mice Lacking the Ability to Make Caspase- 9 Die as the Result

question 14

Multiple Choice

Mice lacking the ability to make caspase- 9 die as the result of numerous defects. During the necropsy (animal autopsy) of the animal you note that the brains of these mice are dramatically enlarged. This is most likely a result of

• A)overstimulation of G- protein mediated transduction.
• B)overproduction of the Etr1 receptor protein.
• C)lack of apoptosis of some cells.
• D)unregulated growth of the nerve cells.
• E)all of the above

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Definitions:

Chorion

The embryo’s outermost membrane.

Blastocyst

A collection of about 100 human cells that develops from the zygote.

Gastrulation

An early embryonic phase during which the single-layered blastula is reorganized into a multilayered structure known as the gastrula.

Uterine Cavity

The interior part of the uterus, where the embryo implants and develops during pregnancy.