The diagram below shows a single bacterial colony before and after treatment with an antibiotic. Show
When a bacterial infection is treated with an antibiotic, the hope is that the antibiotic will kill all of the bacteria and prevent them from reproducing. However, if the full prescription of antibiotics is not taken by the sick person, some of the more resistant bacteria can survive. When they reproduce, these bacteria can pass the genes responsible for their resistance on to their offspring. As a result, subsequent administration of the same antibiotic will be less and less effective over time. The information presented above suggests that antibiotic resistance is the result of Which of the following best explains how genetic recombination influences evolution?Which of the following best explains how genetic recombination influences evolution? The genetic variation introduced during recombination provides new allelic combinations for natural selection to act upon.
Which explanation best predicts what should happen to this trait over time?The gene can be passed from one generation to the next. Which explanation best predicts what should happen to this trait over time? The incidence of mid-digital hair will not change because it offers no selective advantage or disadvantage. selective pressures favor new traits in a given environment.
What effect does genetic drift have on the allele frequency of a population?Summary. Unlike natural selection, genetic drift does not depend on an allele's beneficial or harmful effects. Instead, drift changes allele frequencies purely by chance, as random subsets of individuals (and the gametes of those individuals) are sampled to produce the next generation.
How is genetic diversity important to the concept of natural selection?Genetic diversity is important because it gives species a better chance of survival. However, genetic diversity can be lost when populations get smaller and isolated, which decreases a species' ability to adapt and survive.
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What is the best explanation of what will happen in a population of genetically altered cows?
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