In Drosophila Development, in Which Order Are the Following Classes $\text { gap } 3 / 4 \text { segment-polarity } 3 / 4 \text { pair-rule }$

question 98

Multiple Choice

In Drosophila development, in which order are the following classes of genes expressed?

• A)
• \(\text { gap } 3 / 4 \text { segment-polarity } 3 / 4 \text { pair-rule }\)
• B)
• \(\text { segment-polarity } 3 / 4 \text { gap } 3 / 4 \text { pair-rule }\)
• C)
• \(\text { pair-rule } 3 / 4 \text { gap } 3 / 4 \text { segment-polarity }\)
• D)
• \(\text { gap } 3 / 4 \text { pair-rule } 3 / 4 \text { segment-polarity }\)
• E)
• \(\text { pair-rule } 3 / 4 \text { segment-polarity } 3 / 4 \text { gap }\)

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Definitions:

Taste Hair

Microscopic hair-like structures on taste buds that interact with food molecules to perceive taste.

Visual Acuity

The clarity or sharpness of vision, measured by the ability to discern letters or numbers at a specific distance according to a standard chart.

Fovea Centralis

Depression in the middle of the macula where there are only cones and no blood vessels.

Optic Disc

Point at which axons of ganglion cells of the retina converge to form the optic nerve, which then penetrates through the fibrous tunic of the eye.