After They Have Elongated,the Cells of the Neural Epithelium Become

question 46

Multiple Choice

After they have elongated,the cells of the neural epithelium become constricted at one end,causing them to become wedge shaped and leading the entire layer of cells to curve inward.What causes this constriction?

• A)contraction of microtubules in the cytoplasm just above the basal cell membrane
• B)lengthening of microtubules in the cytoplasm just below the apical cell membrane
• C)contraction of a band of microfilaments that assemble in the cortical region of the cells just above the basal cell membrane
• D)contraction of a band of microfilaments that assemble in the cortical region of the cells just beneath the apical cell membrane
• E)shortening of microtubules in the cytoplasm just below the apical cell membrane

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Definitions:

Population Variance

The variance calculated from the entire population of a dataset, representing the true measure of its variability.

Chi-Squared Distribution

A probability distribution used in statistical hypothesis tests that is built by squaring independent standard normal random variables.

Random Variable

A measurable variable with outcomes based on the randomness of specific incidents.

Significance Level

The threshold below which a p-value is considered statistically significant, typical levels are 0.05, 0.01, etc., indicating the probability of rejecting the null hypothesis when it is true.