Which element of the toe operon can act in cis or trans? a. the operator sequenc

Question

Which element of the toe operon can act in cis or trans? a. the operator sequence b. the lad gene product c. the structural genes Y, Z, and A d. the promoter region e. the CAP-binding site sequence f. both the operator and promoter sequences can act in either cis or trans g. both CAP binding site sequence and the IacI gene product can act In either cis or trans In RNA induced gene silencing, how do the silencing processes begin and what major components participate? Select all answers that apply. a. Short, double-stranded RNA molecules are recognized by either the RISC or RITS complex and the sense strand Is degraded. b. The RISC complex, guided by single-stranded RNA, can silence gene expression by affecting either mRNA stability or translation. c. siRNA molecules are derived from single-stranded RNAs that are transcribed from the cell's own genome. d. The RITS complex, guided by single-stranded RNA, recruits chromatin remodeling proteins that can repress transcription. e. The Dicer complex can cleave both siRNA and miRNA precursors into siRNAs and miRNAs.

Explanation / Answer

The elements in the lac operan that can act cis and trans are:

g. cap binding sequence and the lac I gene product.

Q19: The following statements are true and thus apply:

The RISC complex guided by the single-stranded RNA, can silence gene expression by affecting the mRNA stability.

Dicer complex cleaves both siRNA and miRNA precursors into siRNA and miRNA

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