What types of proteins are responsible for 50% of the freezing point depression in the icefish A. glycoproteins B. n-acetylglucosamine C. Threonine...

What types of proteins are responsible for 50% of the freezing point depression in the icefish A. glycoproteins B. n-acetylglucosamine C. Threonine D. no answer text provided. What had happened to the alpha-globin and beta-globin genes of the ancestors of the icefish? A. these genes had been spliced out of the genome of the icefish in a lab in palo alto, california. B. These genes were destroyed by the extreme cold of antartica C. These genes had slowly eroded by deletion events to there sequences, these are now fossil genes D. The ancestors of these fish never had globin genes, evolution is not part of this story.