When the Bicoid Protein Is Expressed in Drosophila, the Embryo

question 37

Multiple Choice

When the Bicoid protein is expressed in Drosophila, the embryo is still syncytial (divisions between cells are not yet fully developed) . This information helps to explain which observation by Nüsslein-Volhard and Wieschaus?

• A) mRNA from the egg is translated into the Bicoid protein.
• B) Bicoid protein diffuses throughout the embryo in a concentration gradient.
• C) Bicoid protein serves as a transcription regulator.
• D) Bicoid protein determines the dorsoventral axis of the embryo.

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Definitions:

Binomial Experiment

An experiment or trial that fits the criteria of having a fixed number of trials, only two possible outcomes, independent trials, and a constant probability of success.

Number of Successes

In a statistical experiment, it refers to the count of times an event of interest occurs.

Louisiana Territory

A vast region of North America that was purchased by the United States from France in 1803, doubling the size of the country and opening the way for westward expansion.

Gateway

A point of entry or access, often used metaphorically to describe something that serves as an entrance to something else, such as a technology, idea, or country.