When water freezes, stable hydrogen bonds form between the water molecules that create an open, six-sided (hexagonal) arrangement
Indicate whether the statement is true or false
TRUE
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How does the phosphorylation of galactose differ from the phosphorylation of glucose, mannose, and fructose prior to catabolism?
A. Phosphorylation of galactose requires NADPH to phosphorylate galactose-1-phosphate B. Phosphorylation of galactose requires ATP to phosphorylate galactose-1-phosphate C. Phosphorylation of galactose requires PEP (phosphoenolpyruvate) to phosphorylate galactose-1-phosphate D. Phosphorylation of galactose requires UTP to phosphorylate galactose-1-phosphate E. Phosphorylation of galactose requires TTP to phosphorylate galactose-1-phosphate
Which of the following attaches to specific amino acids?
A) Messenger RNA B) DNA C) Ribosomal RNA D) Transfer RNA E) RNA polymerase
True or False: Pasteur discovered that Aspergillus exclusively acts on only one of the two isomeric forms of tartrate, showing that organisms can discriminate between optical isomers
a. TRUE b. FALSE
How many genes are generally found for every million bases of prokaryotic DNA?
A. 10 B. 1,000 C. 100 D. 10,000 E. 100,000