If two mice both have grey fur, similar body shapes, and live in the same area,

they would likely have been considered the same species by Linnaeus when he first developed his system of classification in the early 1700s.

What could be done today, that Linnaeus could not do, to help us determine more clearly if they are the same species?


AWe could compare gene or protein sequences between the two mice.
BWe could determine if it is possible for the two mice to be interbred.
CWe could take blood samples to see if the two mice have the same blood type.
DWe could track the mice with satellites to determine if they have the same habits.

Verified Answer :

If two mice both have grey fur, similar body shapes, and live in the same area, they would likely have been considered the same species by Linnaeus when he first developed his system of classification in the early 1700's. What could be done today, that Linnaeus could not do, is we would compare gene or protein sequences between the two mice. This will help us determine more clearly if they are the same species.

The answer would be letter A.

We could compare gene or protein sequences between the two mice in order to determine more clearly if they are the same species (Option A).

Sequence homo-logy and evolution

Sequence homo-logy refers to the similarity degree between two or more sequences due to the same evolutionary origin.

  • Sequence homo-logy can be used to determine the evolutionary relationships between different populations, species, taxonomic groups, etc.

  • Sequence homo-logy is estimated by aligning the nucleotide/protein sequences and then comparing them.

In conclusion, we could compare gene or protein sequences between the two mice in order to determine more clearly if they are the same species (Option A).

Learn more about sequence homo-logy here:

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