Question

multiple choice question
the development of limbs in a bird and no limbs in a
snake is controlled by

coevolution.

homeotic genes.

noncoding dna.

convergent evolution.

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Explanation:

To solve this, we analyze each option:

• Coevolution involves reciprocal evolutionary changes in interacting species, not limb development control.
• Homeotic genes regulate the development of body structures (like limbs) in organisms. They determine the identity of body parts, so they control limb development (or lack thereof) in birds and snakes.
• Noncoding DNA has regulatory or other non - protein - coding functions but isn't directly responsible for limb development patterning.
• Convergent evolution is when unrelated species develop similar traits, not about controlling limb development.

Answer:

B. homeotic genes