Which of the following is TRUE
A. Human pathogens belongs to thermophile group
B. Obligate aerobes cannot neutralize the toxic by-products of oxygen metabolism
C. Facultative anaerobes grow faster during aerobic respiration than during anaerobic respiration
D. None of these are TRUE
E. At the maximum growth temperature for a microorganism, microbial growth is the most rapid
Ans: C. Facultative anaerobes grow faster during aerobic respiration than during anaerobic respiration
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The ________ is comprised of the semifluid portion of the cell and contains the organelles
Fill in the blank with correct word.
A new DNA strand elongates only in the 5' to 3' direction because
A) DNA polymerase begins adding nucleotides at the 5' end of the template. B) Okazaki fragments prevent elongation in the 3' to 5' direction. C) the polarity of the DNA molecule prevents addition of nucleotides at the 3' end. D) replication must progress toward the replication fork. E) DNA polymerase can only add nucleotides to the free 3' end.
ZPA cells of the chick embryo produce which morphogen?
A) bicoid B) chicken wing factor C) sonic hedgehog D) sonic chicken
Each gene in this molecule gives the instructions for making a ______.
Fill in the blank(s) with the appropriate word(s).