Diphtheria toxin is produced only by strains of Corynebacterium diphtheriae that are infected with a particular bacteriophage. This is an example of ________.
A. lysis
B. induction
C. lysogenic conversion
D. conjugation
Answer: C
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Many integral membrane proteins have not been analyzed by X-ray crystallography. However, transmembrane segments can be inferred using computer analysis of the amino acid sequence of the protein. This technique is known as
A) homeoviscous adaptation. B) lipid analysis. C) lipid rafting. D) hydropathic analysis. E) SDS-PAGE.
What is produced during the first and second stages of aerobic respiration that are needed for the final stage (electron transfer phosphorylation)?
What will be an ideal response?
Which gene is recessive in the ABO blood group?
A. A B. B C. O D. none of them
Cardiac muscle cells are connected by special junctions called intercalated discs. Intercalated discs provide strength between cells of tissues which exhibit high mechanical stress, strong flexible connections between tissue cells, and electrical excitability between the cells. Using this information, which junctions are present in intercalated discs?
A. tight, plasmodesmata, and adherens B. gap, adherens, and desmosomes C. tight, plasmodesmata, and desmosomes D. adherens, tight, and gap E. gap, desmosomes, and hemidesmosomes