Answer:
Your answer is organ systems.
(4) People who have the O blood type possess no enzymes capable of attaching N-acetylgalactosamine or galactose on RBC membrane glycolipids at the end of the oligosaccharide chain. It’s the people with AB blood type who can possess enzyme with that capability.
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Answer:
hox genes are a subset of regulatory genes that encode transcription factors and they are important for embryonic development. they are activated by a cascade of regulatory genes and the proteins encoded by the early genes regulate expressions of later genes
Explanation:
11. D
12. C
13.
14.
15.
thats all I know, hope it helped
