Use the Following Information to Answer the Following Questions

question 88

Multiple Choice

Use the following information to answer the following questions.
In Drosophila after ~100 minutes postfertilization, the embryo looks like the following diagram, with all nuclei having moved to the periphery and, subsequently, four of the nuclei being sequestered at the posterior end.

Drosophila embryo after about 2 hours.
-The four sequestered cells at one end are most probably destined to become

• A) the legs of the adult fly.
• B) the germ cells of the adult.
• C) mouthparts.
• D) antennae.
• E) wing primordial.

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Definitions:

Esophagus

The muscular tube that conveys food and liquids from the mouth to the stomach, playing a vital role in digestion.

Pulmonary Artery

The artery carrying deoxygenated blood from the right ventricle of the heart to the lungs for oxygenation.

Tympanic

Relating to the tympanum or eardrum, often used in the context of measuring body temperature via the ear canal.

Abnormally Low

Describing a condition or value that is much less than the normal or expected level.