Proteins are often regulated by phosphorylation by enzymes called
a. protein phosphatases.
b. phosphoproteases.
c. protein phosphorylases.
d. protein kinases.
Answer: d. protein kinases.
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You are studying 12 new isolates from the human skin. The isolates have 16S rRNA sequences that are 97% similar and share important phenotypic traits. Their genomes have 55% of their genes in common. The isolates would most likely be
A) classified as individual strains of the same species. B) classified as individual species of the same genus. C) split into different families. D) classified as the same species if they can mate via conjugation.
Water ecosystems become eutrophic when there is ________.
A. nutrient removal from waters B. acidification of waters C. deoxygenation of waters D. nutrient enrichment of waters
Shoots and roots consist of __________,
__________, and __________ tissue systems. Fill in the blank(s) with the appropriate word(s).
A developing embryo which lacks an SRY gene will develop into a
a. develop into a male. b. develop into a female. c. develop without gonads. d. develop gonads of both