In terms of gene expression, the regulation of lac operon is an example of? A. Post-transcriptional regulation B. Alternative splicing C. Splicing D. Transcriptional regulation E. Post-translational regulation
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.
In terms of gene expression, the regulation of lac operon is an example of?
A. Post-transcriptional regulation
B. Alternative splicing
C. Splicing
D. Transcriptional regulation
E. Post-translational regulation
- In bacteria, an operon is a collection of genes that are transcribed as a single mRNA molecule by a single promoter.
- The lac operon is an example of an inducible operon, which controls the expression of genes involved in lactose metabolism.
- It is made up of three structural genes: lacZ, lacY, and lacA, as well as a regulatory region with a promoter, an operator, and the lacI gene.
- When lactose is present in the environment and an inducer molecule binds to the lac repressor protein, the lac operon is activated.
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