The exfoliative toxins, TSST-1, and the enterotoxins are all superantigens. The genes for these toxins are
A: Present in all strains of Staphylococcus aureus
B: Widely distributed on the staphylococcal chromosome
C: On both the staphylococcal chromosome (TSST-1 and exfoliative toxins) and on plasmids (enterotoxins)
D: On the staphylococcal chromosome in a pathogenicity island
E: On plasmids
A: Present in all strains of Staphylococcus aureus
B: Widely distributed on the staphylococcal chromosome
C: On both the staphylococcal chromosome (TSST-1 and exfoliative toxins) and on plasmids (enterotoxins)
D: On the staphylococcal chromosome in a pathogenicity island
E: On plasmids
举一反三
- Which is correct about the red-green colorblind in humans? A: loss of L or M cone genes on the X chromosome B: gain of S cone genes on the X chromosome C: loss of L or M cone genes on the Y chromosome D: gain of S cone genes on the Y chromosome
- Which is correct about the red-green colorblind in humans? A: (A) loss of L or M cone genes on the X chromosome B: (B) gain of S cone genes on the X chromosome C: (C) loss of L or M cone genes on the Y chromosome D: (D) gain of S cone genes on the Y chromosome
- The chromosome theory of inheritance states that A: All are correct B: chromosomes are made of DN C: genes are located on chromosomes. D: alleles of a gene segregate during cell division.
- chromosome
- chromosome ________