Practice question
Question
Reproduction of Φx174 a single stranded DNA phage involves several steps. A few statements are given below to explain the mechanism. A. The single stranded Φx174 A. DNA is converted into a double- stranded replicative form CR, B. Replication of double stranded replicative form results in the production of single stranded phages, about 5095 of which are + sense phages and the remaining are —ve sense phages C. Replication of the double stranded replicative forrn results in t. production of only —ve sense phages D. Replication of the double stranded replicative form results in the production of only -.ye sense phages Choose the option that correctly describes the process
Explanation
reproduction of φx174 a single stranded dna operates via A and D represents established outcome. functional assays validates option D. Other options propose substrate or regulatory direction, inconsistent with published kinetics and mutant phenotypes.
Discussion
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