Which One of the Following Classes Is Expressed in the Unfertilized

question 6

Multiple Choice

Which one of the following classes is expressed in the unfertilized egg and is involved in directing the spatial organization of the Drosophila embryo early in development?

• A)Gap genes
• B)Homeotic genes
• C)Maternal genes
• D)Segment polarity genes
• E)Segmentation genes

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Definitions:

Cupula

A gelatinous, dome-shaped structure in the vestibular system of the inner ear that contains hair cells and is pivotal in detecting head movements and maintaining balance.

Cochlear Nerve

The nerve that transmits auditory information from the cochlea in the inner ear to the brain.

Nystagmus

Involuntary, rapid, and repetitive movement of the eyes, which can be horizontal, vertical, or rotary, and may indicate underlying neurological problems.

Rotational Movements

Movements around an axis, such as turning the head from side to side or rotating an arm at the shoulder.