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Put the following steps in the evolution of antibiotic resistance in the order i

ID: 320103 • Letter: P

Question

Put the following steps in the evolution of antibiotic resistance in the order in which they occur:

The antibiotic is more-or-less obsolete (useless, ineffective).

Selection favors compensatory mutations in the Ab-resistant population to favor the evolution of higher growth rates.

An advantageous mutation occurs that does not influence Ab-resistance, but increases growth rate.

The individual cell with the Ab-resistant allele survives and reproduces slowly.

Antibiotics are introduced into the environment.

A deleterious mutation occurs in a single cell that confers antibiotic resistance but compromises growth rate.

The antibiotic is more-or-less obsolete (useless, ineffective).

Selection favors compensatory mutations in the Ab-resistant population to favor the evolution of higher growth rates.

An advantageous mutation occurs that does not influence Ab-resistance, but increases growth rate.

The individual cell with the Ab-resistant allele survives and reproduces slowly.

Antibiotics are introduced into the environment.

A deleterious mutation occurs in a single cell that confers antibiotic resistance but compromises growth rate.

Explanation / Answer

Antibiotics are introduced into the environment.

A deleterious mutation occurs in a single cell that confers antibiotic resistance but compromises growth rate.

The individual cell with the Ab-resistant allele survives and reproduces slowly.

Selection favors compensatory mutations in the Ab-resistant population to favor the evolution of higher growth rates.

An advantageous mutation occurs that does not influence Ab-resistance, but increases growth rate.

The antibiotic is more-or-less obsolete (useless, ineffective).