A geneticist is attempting to isolate mutations in the genes for four enzymes acting in a metabolic pathway in the bacterium Escherichia coli. Developing a hypothesis to explain that the geneticist has been able to isolate mutations in the genes for enzymes 1 and 2, but not for enzymes 3 and 4. Introduction: Enzymes are the proteins coded by genes (sequence of nucleotides) present in DNA (Deoxyribonucleic acid). Different genes code for different enzymes in the cell. The enzyme binds to a substrate and subsequently forms a product. Gene is a sequence of nucleotides and if there is any change (mutation) in the nucleotide sequence of a gene coding for an enzyme; the enzyme formed will have some or all of its properties changed, depending upon the type of mutation.

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Chapter 15, Problem 14TYK

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A geneticist is attempting to isolate mutations in the genes for four enzymes acting in a metabolic pathway in the bacterium Escherichia coli. Developing a hypothesis to explain that the geneticist has been able to isolate mutations in the genes for enzymes 1 and 2, but not for enzymes 3 and 4.

Introduction:

Enzymes are the proteins coded by genes (sequence of nucleotides) present in DNA (Deoxyribonucleic acid). Different genes code for different enzymes in the cell. The enzyme binds to a substrate and subsequently forms a product. Gene is a sequence of nucleotides and if there is any change (mutation) in the nucleotide sequence of a gene coding for an enzyme; the enzyme formed will have some or all of its properties changed, depending upon the type of mutation.

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