Explain why a well-adapted organism synthesizes

| August 31, 2017

Question
Chromosomal puff of Polytene chromosome

1. Explain why a well-adapted organism synthesizes only the proteins necessary at any particular moment.

2. When radioactive uracil is injected into the developing larvae of Drosophilia, only certain regions of the chromosomes in certain tissues contain radioactive uracil. Explain this observation.

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