Biochemical tests _________________.
a. are the main methods used to identify unknown bacteria
b. are visualized using microscopes
c. are used to determine rate of growth
d. are the most effective way to determine bacterial shape
Answer: a. are the main methods used to identify unknown bacteria
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High-efficiency natural transformation
A) is common in Bacteria and Archaea. B) requires specialized DNA uptake, DNA binding, and integration proteins. C) is only common in Archaea. D) usually involves plasmids.
Given the DNA sequence 5?-TAC AAA ATA CAG CGG-3?, which of these sequences represents a missense mutation?
A) 5?-TAG AAA ATA CAG CGG-3? B) 5?-TAC AAA TAC AGC GGG-3? C) 5?-TAC AAG ATA CAG CGG-3? D) 5?-TAC AAA ATA CAC CGG-3? E) 5?-TAC AAA ATA CAG AGG-3?
By definition, if the DNA of a cell undergoes a spontaneous mutation, is was NOT due to ________.
A. spontaneous depurination of nucleotides B. insertion of transposons C. exposure to radiation D. errors in DNA replication
Secretion is the movement of substances from the ________ to the ________
A) nephron... blood B) filtrate... blood C) kidney... urinary bladder D) blood... filtrate