If autophosphorylation of CheA protein does not occur, then Escherichia coli cells must be ________.
A. in a gradient of a chemoattractant
B. tumbling
C. in a gradient of a chemorepellant
D. rotating flagella clockwise
Answer: A
Biology & Microbiology
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RNA differs from DNA in that
A) it is usually single-stranded. B) it is usually double-stranded. C) it has thymine instead of uracil. D) it has deoxyribose instead of ribose.
Biology & Microbiology
The use of radioactive elements to date geological specimens is called ________
Fill in the blank(s) with correct word
Biology & Microbiology
Enzymes increase the rate of a reaction but do not alter equilibrium constants.
Answer the following statement true (T) or false (F)
Biology & Microbiology
In the diagram at the bottom called a(n)________, the shared derived______are internal fertilization and amniotic eggs.
What will be an ideal response?
Biology & Microbiology