Explain the emergence of multiple resistance and how careful antibiotic use can reduce selective pressure.
Tę umiejętność sprawdza 5 zadań wzorowanych na arkuszach IB z lat 2022–2025.
A bacterial isolate is no longer killed by an antibiotic that inhibited an earlier isolate of the same species. Which biological change could explain the difference? A. A mutation has altered a bacterial target so the drug binds less effectively B. The…
Suggest why colonies can form despite antibiotic Z.
Inheritance and cell division contribute to biological variation. (a) Draw and label one RNA nucleotide. (b) Distinguish mitosis from meiosis. (c) Explain how natural selection can produce antibiotic resistance in a bacterial population.
Which explanation is consistent with the trend in this constructed bacterial dataset? A. The antibiotic gives every bacterium an inherited need to resist it B. Resistance means that bacteria have human-like acquired immunity C. Resistant variants can survive…
Which processes can make pathogen control more difficult? I. Selection of antibiotic-resistant bacteria. II. Genetic changes producing new pathogen variants. III. Antibiotics acting as an effective treatment against every virus. A. I and II B. II and III C. I…
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