A scientist conducts a procedure that causes nitrogen atoms to gain neutrons. The resulting atoms will be:
A. new elements with higher atomic numbers.
B. negatively charged.
C. ions of nitrogen.
D. positively charged.
E. isotopes of nitrogen.
Answer: E
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Which of the following is the correct genus and species name of the common dolphin, a marine mammal?
What will be an ideal response?
What is the raw material for evolution?
What will be an ideal response?
Which of the following statements concerning transcription in bacteria is FALSE?
A) It occurs in the nucleoid region. B) Sigma factors are parts of RNA polymerase that recognize promoter regions. C) Different RNA polymerases are required for synthesis of mRNA, rRNA, and tRNA. D) Termination is either self-induced or due to the presence of Rho protein. E) There are a variety of sigma factors that affect transcription.