A researcher determined that a strain of E. coli is producing a shortened version of a protein required for glucose metabolism. What type of mutation could be responsible for this shorter than normal protein?

A. nonsense mutation
B. missense mutation
C. silent mutation
D. sense mutation
E. frameshift mutation


A. nonsense mutation

Biology & Microbiology

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In many mammalian species, including bats and most non-human primates, a bone in the penis, called the ____, helps

to maintain it in an erect state.

a. pendulum b. baculum c. colostrum d. prepuce e. marsupium

Biology & Microbiology

A typical human body has ____ bones

a. 78 b. 168 c. 206 d. 417 e. over 600

Biology & Microbiology

Why is one side of a single water molecule partially negative while the other side is partially positive?

A) Electron pairs are unevenly shared between the oxygen atom and the two hydrogen atoms. B) Electron pairs are unevenly shared between the two hydrogen atoms. C) Oxygen donates its electrons to hydrogen. D) Hydrogen donates its electrons to oxygen.

Biology & Microbiology

The lack of oxygen in the ancient Earth's atmosphere was beneficial because oxygen combines with organic molecules to prevent them from forming polymers.

Answer the following statement true (T) or false (F)

Biology & Microbiology