O The lac operon in E.coli encodes enzymes necessary for the breakdown of lactose. For each enzyme (lac Z and lac Y), indicate with a + or-whether or not it is made when there is no lactose or when there is lactose. B-galactosidase (lac Z) No Lactose Permease (lac Y) No Lactose Lactose Genotype TP OcZ Y/I P O*ZY* I'POCZ Y*/I P* O©Z*Y• PP O'Z'Y/I P'O Z'Y* PP O Z Y*/IIP'OZ'Y* rp O°Z*Y/I P*O*ZY* IPO'Z'Y*/I* P*O©Z*Y• I'P'O*ZY*/I P*OʻZ*Y° Lactose

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A: As per our guidelines we are instructed to answer only 3 subparts of a question. So for other…

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Q: In the trp operon, tryptophan itself serves as the effector for the trp repressor which causes it to…

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Q: the folid ing mutations would result in the highest level of lac operon transcription in the absence…

A: Lac operon is an operon required for the transport and metabolism of lactose in E. coli and many…

Q: P₁0 ORF1 t₁ ORF2 ORF3 t₂ The diagram above illustrates an operon that is regulated by the RepR…

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Q: Lacl' mutant-Lactose is present I P lacl lacP laco lacz lacy lacA LEVEL 16-21 1 OF 4 Look at the lac…

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Q: 12b. Fill in the following table about the Lac operon (LacZ gene) Environmental Condition + Glucose…

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Q: Parts A-C in the table show the genotypes for two partial diploid strains of the lac operon. Gene…

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Q: explain this image for the ecoli bacteria mutation trpE

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Q: Explain how the lac operon can be used to express a recombinant protein in an E. coli cell.

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Q: E. coli cells which are mutant for the y gene cannot accumulate ? in large.enough amounts to use it…

A: Option B - Lactose

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.