Even though mycoplasmas pass through filters that normally trap bacteria, they are known to be bacteria, not viruses, because they
A) contain both DNA and RNA.
B) synthesize peptidoglycan.
C) divide by binary fission.
D) contain both DNA and RNA and divide by binary fission.
E) synthesize peptidoglycan and divide by snapping division.
D
Bloom's Taxonomy: Comprehension
Section: Bacterial Diseases of the Lower Respiratory System
Learning Outcome: 22.11
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The process of meiosis results in ____
A. the production of four identical cells B. no change in chromosome number from parental cells C. a doubling of the chromosome number D. a reduction in chromosome number E. two diploid cells
Discuss the ethical issues – both for and against – associated with PGD selection of savior babies. What will be an ideal response?
Your dog becomes ill and you rush him to the veterinarian's office. A technician draws blood from your dog's leg for a vet-ordered lab test. After a few minutes the lab results are given to the vet, who immediately grabs a bottle from a shelf and begins to fill a syringe with an unknown fluid. You inquire about the fluid, and the vet informs you that the fluid is necessary to manage your dog's metabolic acidosis. Based on the information provided, what is acidosis, and what is the likely effect of the veterinarian's injection?
A. Acidosis means that your dog's blood pH has decreased from its normal level, and an injection of buffering solution is required to reverse the condition. B. Acidosis means that your dog's blood pH has increased from its normal level, and an injection of saline is required to reverse the condition. C. Acidosis means that your dog's blood pH has increased from its normal level, and an injection of buffering solution is required to reverse the condition. D. Acidosis means that your dog's blood pH has dropped from its normal level, and an injection of saline is required to reverse the condition.
Answer the following questions true (T) or false (F)
1. State whether the following statement is true or false, then give your reasoning. The terminating "hairpin" loop occurs in the trp operon when sufficient tryptophan is present.