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Home Q & A Board Biology-Related Homework Help Genetics and Developmental Biology
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kljkjkskss kljkjkskss
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6 years ago
What effect would mutational damage of the following genes or gene regions have on the induction of an integrated lambda phage virus? a. damage to the cI gene b. damage to the cro gene c. damage to the xis gene
 
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6 years ago
(a) The cI gene encodes the lambda repressor, elimination of which permits transcription from the PL and PR promoters, leading to the lytic pathway.
(b) Eliminating the Cro protein also permits transcription from the PL and PR promoters.
(c) Damage to the enzyme excisionase would circumvent induction because this enzyme is necessary for excision from the bacterial chromosome.
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