Question

The immediate early transcripts direct synthesis of which genes? a) N genes b) cro genes c) Both N and cro genes d) PR and PL genes

Answer 1

The immediate early transcripts direct synthesis of  c) Both N and cro genes.

• The N genes in bacteriophage lambda are known for promoting early transcription through the formation of early transcripts.
• Promoters are the regions which transcribe the early transcripts.
• The life cycles of a bacteriophage lambda is controlled by the CRO genes hence its early formation is necessary.
• Hence, the correct option is c) Both N and cro genes

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