Bowhead Whales: A Genetic Analysis

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A transcriptome is the total of all mRNA molecules found in a sample taken from an organism. Three transcriptomes were taken from bowhead whales and other similar organisms. Each sample of genes provides information about the whales that prove the depth of how well they are protected against mutations. The first sample of genes was taken from the liver. It was revealed that bowhead whales have a lower amount of a growth factor called the Grb14 protein (Seim et al., 2014, p. 881). The reduction of this protein lowers the amount of insulin made, but amplifies the liver’s response to it (Seim et al., 2014, p. 881). The transcriptome that was taken from the heart revealed a few reasons why bowhead whales usually do not develop cardiovascular diseases.

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