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Lorico [155]
3 years ago
13

Rivers contain a ________ percentage of earthâs freshwater

Biology
1 answer:
deff fn [24]3 years ago
7 0
1% of earths freshwater
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Two protein kinases, K1 and K2, function sequentially in an intracellular signaling pathway. If either kinase contains a mutatio
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The order must be K2→K1, since the permanently active K1 allele (K1a) is able to propagate the signal onward even when its upstream activator K2 is inactive (K2i). The reverse order would have resulted in a failure to signal (K1a→K2i), since the permanently active K1a kinase would be attempting to activate a dead K2i kinase.

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