How many carbon dioxide molecules does it take to synthesize one molecule of glucose?
a. 2
b. 4
c. 6
d. 12
e. 18
ANSWER: c
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Which of the following is not true about the cut-and-paste pathway of transposition?
A. The reaction forms covalent intermediates as did recombinases of site-specific recombination. B. At the target site, the insertion sites on each strand are staggered to create short repeated sequences at each end of the inserted transposon. C. Cut-and-paste transposition leaves double-stranded breaks at the donor site that can be repaired by recombination repair. D. The transposases molecules bound to either end of the transposon come together before cutting at the 3' ends of the transposon. E. The 3' ends generated by transposase now attack the 5' ends of the transposon, forming hairpins at the ends of the transposon as it is released from the DNA.
A current news story describes a cruise ship in the Caribbean with an outbreak of diarrheal illness, affecting hundreds of people. With all of those people in a small area, opening and closing doors, using handrails, etc, you are trying to figure out what infectious agent may be the cause. Your most likely guess is that the pathogen is ________.
A. Clostridium difficile B. shiga-toxin-producing E. coli C. cholera D. hepatitis B E. norovirus
In which general direction do the prevailing winds blow between 30° North and the equator?
A) from south to north B) from east to west C) from north to south D) from southwest to northeast
anterior portion of mouth with bone
What will be an ideal response?