The replicative form of nucleic acid in filamentous phages is
A. dsDNA.
B. dsRNA.
C. positive ssRNA.
D. negative ssDNA.
A
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There are several reasons bacterial groupings based on morphology, physiology, and other metabolic characteristics may not be supported by molecular phylogenies produced from rRNA genes
Consider the statements below as possible reasons for this discrepancy. Obtaining the traditional groupings of bacteria requires sequencing and comparing the entire genome of each organism and cannot rely on single gene phylogenies generated from 16S rRNA datasets. A. true B. false
Insertions and deletions of three base pairs:
A. change one codon and, therefore, only one amino acid in the protein sequence. B. do not disrupt the reading frame so the protein ends up completely normal. C. do not disrupt the reading frame so the protein will usually retain some degree of function. D. cause frameshifts that will change the reading frame and, therefore, the sequence of the protein. E. usually result in the expression of a truncated protein.
People who have increased their maximum oxygen uptake through a program of sustained exercise do not have an increased
a. amount of blood pumped for each beat of the heart. b. frequency of heartbeat while at rest. c. thickness of the wall of the heart. d. myoglobin content in the skeletal muscles. e. blood supply to the muscle fibers.
The formation of peptide bonds between amino acids to build a polypeptide is an example of ________.
A. fermentation B. anabolism C. glycolysis D. catabolism E. phosphorylation