A Protein with an Internal Signal Sequence Is MOST Likely

question 45

Multiple Choice

A protein with an internal signal sequence is MOST likely to be located in:

• A)the nucleus.
• B)a mitochondrion.
• C)the cytoplasm.
• D)a chloroplast.
• E)the extracellular space.

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Definitions:

Radial Cleavage

A type of embryonic development in certain animals where cell divisions occur at right angles to one another, typical in deuterostomes.

Coelom

Body cavity of an animal; the method by which the coelom is formed (or lack of formation) is an identifying characteristic in animal classification.

Protostomes

A group of animals characterized by the blastopore (the first opening in the developing embryo) becoming the mouth, including groups like mollusks and annelids.

Deuterostomes

A group in the animal kingdom characterized by the development of the anus from the first opening in the embryo, with the mouth developing later.