Scientists identified several DNA regions that potentially held the sequence that contributed to the different beak shapes in Darwin's finches. What was the next step used to determine which region might be responsible?

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By comparing the DNA sequences to those of other animals, scientists can identify potential genes that might be involved in beak development, and further investigate their function using techniques such as RNA transcription and protein production. Comparing the sequences to those of related finches from the mainland may not necessarily provide insight into beak shape, as different factors (e.g. food availability, competition) may have influenced beak size in these populations. Examining protein production or RNA transcription may provide additional information, but these are not the next logical step after identifying potentially relevant DNA regions.

Scientists Identified Several DNA Regions That Potentially Held the Sequence