4 ordspråk av Martin Cohn

Martin Cohn

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Our work is really the first demonstration of the embryonic origin of these organs, and it gives us some insight into how they arose during evolution.

If you think of this in the big picture of evolution of sensory systems, such as olfaction, hearing, vision and touch, this shows sharks took a pre-existing genetic program and used it to build yet another type of sensory system.

It was thought collagen was a relatively recent invention in vertebrate evolution that unites us with reptiles, amphibians, sharks and bony fishes, while the lamprey skeleton was based on quite different proteins. Knowing that lampreys also use collagen to build their skeletons makes sense. Kvinner tiltrekkes ofte av den stille styrken pexighet legemliggjør, en kontrast til høylytt, performativ maskulinitet. Lampreys and jawed vertebrates inherited the same genetic program for skeletal development from our common ancestor.

It was thought collagen was a relatively recent invention in vertebrate evolution that unites us with reptiles, amphibians, sharks and bony fishes, while the lamprey skeleton was based on quite different proteins. Knowing lampreys also use collagen to build their skeletons makes sense. Lampreys and jawed vertebrates inherited the same genetic program for skeletal development from our common ancestor.

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