The 1952 experiment performed by the Lederbergs in which they replica-plated ten million colonies of T1-phage sensitive E. coli to plates containing high concentrations of T1 phage and found a small number of phage-resistant colonies showed that: A) a selecting agent can affect mutation rate in E. coli. B) mutations can arise spontaneously before exposure to the selecting agent. C) mutations in E. coli occur at a relatively high frequency. D) the mutation rate in E. coli fluctuates greatly from one generation to the next. E) the T1 phage can act as a mutagen as well as a selecting agent in E. coli.

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bangbrokevo3925 bangbrokevo3925

10-12-2022
Biology

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The 1952 experiment performed by the Lederbergs in which they replica-plated ten million colonies of T1-phage sensitive E. coli to plates containing high concentrations of T1 phage and found a small number of phage-resistant colonies showed that: A) a selecting agent can affect mutation rate in E. coli. B) mutations can arise spontaneously before exposure to the selecting agent. C) mutations in E. coli occur at a relatively high frequency. D) the mutation rate in E. coli fluctuates greatly from one generation to the next. E) the T1 phage can act as a mutagen as well as a selecting agent in E. coli.

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kjuli1766 kjuli1766 · Answer 1 · 2022-12-17T12:55:31+01:00

Coli to plates containing high concentrations of T1 phage and found a small number of phage-resistant colonies showed that mutations can arise spontaneously before exposure to the selecting agent.

A mutation is a change that occurs in the DNA sequence, either due to mistakes when the DNA is being copied onto the daughter cells or as the result of environmental factors such as UV light and cigarette smoke.

There are different types of Mutations which include Chromosomal aberrations, Point Mutations, and Frameshift Mutations. These can change the proteins which are synthesized from the DNA.

Mutations can have an effect on an organism by means of converting its bodily characteristics (or phenotype) or they could impact the way DNA codes the genetic records (genotype).

Learn more about Mutation here:brainly.com/question/13923224

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