Which of the following is not a phenotypic trait of bacteria?
A. Nutrient requirements
B. Biochemical reactions
C. Cell shape
D. rRNA sequence
Answer: D
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The depolarization phase of an action potential requires _____
A) opening of K+ channels in the membrane B) opening of Na+ channels in the membrane C) opening of Ca2+ channels in the membrane D) a K+ concentration gradient across the membrane E) a Ca2+ concentration gradient across the membrane
All of the following contain amino acids EXCEPT _____
A) hemoglobin B) cholesterol C) enzymes D) insulin
The chain termination method of DNA sequencing is based on a replicating DNA strand incorporating a(n)
deoxynucleotide that stops the chain elongation. __________________ Indicate whether the statement is true or false.
Which writing voice and tense should be used when writing the methods of the paper?
A. Active voice, future tense B. Passive voice, past tense C. Passive voice, present tense D. Active voice, second person