What is the function of the sigma subunit of prokaryotic RNA polymerase? a. It directs the polymerase to bind a specific type of promoter sequence b. It contains the polymerase active site. c. It allows template-independent RNA synthesis d. It signals the polymerase to terminate transcription at specific sites. e. It contains the separate exonuclease site required for proofreading.

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Q: Which of the following mutations could be appropriately describedas a position effect?A. A point…

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Q: Which of the following statements about the transcription process is correct?

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A: Mutation results in alteration of a nucleotide sequence of DNA which caused due to the mistake in…

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Q: highly-conserved regions of human DNA

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Q: A promoter is, choose the correct answer... a. the binding site for the ribosome on a messenger RNA…

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Q: function of a restriction endonuclease?

A: Recombinant DNA technology mainly aids in identification or investigation of DNA, recombination and…

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A: transcription is the process in which m RNA is formed as directed by the template strand of DNA.

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A: DNA carries genetic information required for the survival of living organisms. The complete set of…

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Gene Interactions

When the expression of a single trait is influenced by two or more different non-allelic genes, it is termed as genetic interaction. According to Mendel's law of inheritance, each gene functions in its own way and does not depend on the function of another gene, i.e., a single gene controls each of seven characteristics considered, but the complex contribution of many different genes determine many traits of an organism.

Gene Expression

Gene expression is a process by which the instructions present in deoxyribonucleic acid (DNA) are converted into useful molecules such as proteins, and functional messenger ribonucleic (mRNA) molecules in the case of non-protein-coding genes.