Question

Explain why signalling pathways are conserved amongst species.

Answer 1

Signalling pathways are conserved amongst species, and exists in a variety of species. Such signalling pathways is being conserved throughout the evolution of those species and a signalling pathway must by neccessity have appeared for the first time in one particular species. If that species gives rise to new species, but the pathway in question is identical or very similar in all the new species, it is sensible to say that pathway has been evolutionary conserved. This may further imply that the conservatoin of signalling pathway is important for the fitness of those species.

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