Genetics homework 3
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ethylmethane sulfonate
alkylating agent
order the steps of the methyl-directed mismatch repair system
1. parental strands are marked with methyl groups 2. MutS and MutL recognize mismatch in replicated DNA 3. MutL recruits MutH, which makes a nick opposite the methyl tag 4. DNA exonucleases remove DNA from the new strand 5. the new strand is repaired and methylated
5-Bromo-uracil
base analog
nitrous acid
deaminating agent
the two main mechanisms used to repair DNA double-strand breaks are __________ recombination repair and _________ end-joining
homologous; nonhomologous
hydroxylamine
hydroxylating agent
proflavin
intercalating agent