Consider the Apical Location of a Particular Protein Expressed in Epithelial

question 46

Multiple Choice

Consider the apical location of a particular protein expressed in epithelial cells, illustrated in part A of Figure 11-35.Which type of defect described below is the most likely to cause the redistribution of that protein around the entire cell, shown in part B of Figure 11-35 Figure 11-35

• A)a nonfunctional protein glycosylase
• B)the deletion of a junctional protein
• C)the truncation of a protein found in the extracellular matrix
• D)a nonfunctional flippase

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Definitions:

Cell Wall

A rigid layer that lies outside the cell membrane of plants, fungi, and bacteria, providing structural support and protection.

Human Genome Project

an international scientific research project with the goal of determining the sequence of nucleotide base pairs that make up human DNA, and of identifying and mapping all of the genes of the human genome.

Repeated Sequences

DNA segments that are present multiple times within a genome, including both tandem repeats and interspersed repeats.

Nucleotides

Organic molecules that serve as the monomers, or subunits, of nucleic acids like DNA and RNA, consisting of a nitrogenous base, a sugar, and one or more phosphate groups.