Strain LOLZ has a mutation in the lacI gene that results in a lacI protein that cannot bind allolactose. Otherwise all other parts of the operon are functional. 1. Can strain LOLZ metabolize lactose if it is present? 2. If lactose is absent, will strain LOLZ transcribe its lac operon? 3. If lactose is present, will strain LOLZ transcribe its lac operon?
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.
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Strain LOLZ has a mutation in the lacI gene that results in a lacI protein that cannot bind allolactose. Otherwise all other parts of the operon are functional. |
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1. Can strain LOLZ |
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2. If lactose is absent, will strain LOLZ transcribe its lac operon? |
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3. If lactose is present, will strain LOLZ transcribe its lac operon? |
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