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ID: 3165891 • Letter: A
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ate with security updates, fixes, and improvements, choose Check for Updates. 15 Across 9· [TRUE or FALS]-Lenski's citrate cultures chose the right DNA to mutate, while the others did not. Down 1. If mutation causes an allele to cease functioning, but the allele on the homologous chromosome 3. Richard Lenski was able to measure solely the effects of and selection on bacterial fitness, by 4. Of Lenski's 3 citrate positive cultures, only 1 experienced enough random but beneficialto in the 12. Mutation-selection balance is when the rate that mutation produces detrimental alleles is equal to the compensates and results in no impact on phenotype, the mutation results in a allele ensuring that his E.coli strain couldn't exchange(2 wds, in order of appearance) same flask outcompete and lead to extinction of the microbes using glucose. rate at which selection themExplanation / Answer
Answer 9 True.
The right DNA mutated was used further in the experiments to draw important conclusions.
Answer 1. Recessive, because it was not expressed on the homologous chromosomes.
Answer 3. Mutation, DNA
Richard carried on an important experiment on E. coli since, his major criteria was to use mutation and selection among bacterial strains. He does not used any plasmid so that no DNA exchange can take place, only asexual methods of reproduction were used.
Answer 4. Mutations.
His experiment was primarily based on the selection of the beneficial mutations.
Answer 12. Replace.
The rate at which harmful mutations occur and if selection replace them then it is known as mutation selection balance.
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