Refer to the Figure Showing the Expression of the Hoxb

question 2

Multiple Choice

Refer to the figure showing the expression of the Hoxb gene cluster in a mouse. Based on the figure, you can conclude that

• A) determination of anterior structures is dependent upon expression of Hoxb1 and Hoxb2 genes.
• B) Hoxb1 is expressed later in development than Hoxb9.
• C) each Hoxb gene is expressed in a unique region along the anterior-posterior axis in which other Hoxb genes are not expressed.
• D) there is greater Hoxb3 expression in the posterior than in the anterior region of the embryo.
• E) Hoxb9 is the only Hoxb gene expressed in the anterior region of the embryo.

---

Definitions:

Empirically Based

Pertains to practices, theories, or approaches that are supported by observable and measurable evidence, often through scientific research and experimentation.

Intuitive Knowledge

Understanding or knowledge gained without conscious reasoning, often based on instinct.

Logical Consistency

The attribute of an argument, theory, or system of thought in which all its components fit together without contradiction.

Observation

The active acquisition of information from a primary source.