How does UV radiation inhibit microbial growth? a. denatures…

Hоw dоes UV rаdiаtiоn inhibit microbiаl growth? a. denatures protein by oxidation of amino acid R groupsb. denatures protein by reaction with amino acid sulfhydryl (SH-) groupsc. causes DNA strand gaps and breaksd. causes the formation pyrimidine (eg., thymine) dimers [UV] How does ionizing radiation (eg., X rays) inhibit microbial growth? a. denatures protein by oxidation of amino acid R groupsb. denatures protein by reaction with amino acid sulfhydryl (SH-) groupsc. causes DNA strand gaps and breaksd. causes the formation of pyrimidine (eg., thymine) dimers [ionizing] If an organism is an endospore-former (eg., Bacillus anthracis), at what phase of its growth would it be most resistant to UV radiation?  [resistant] a.  lag phase b.  log phase c.  plateau phase d.  decline/death phase