The way by which Chargaff’s rule relates to the structure of DNA. Concept introduction: DNA is double stranded consisting of two strands of nucleotides . The bases in one strand are complementary to the bases on the other strand. During DNA replication , the two strands of parent DNA molecule separate. The parent strands act as templates along which the DNA polymerases add up the complementary base pairs in the context of base-pairing rules.

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Molecular Biology Please help with question. thank you You are studying the expression of the lac operon. You have isolated mutants as described below. In the presence of glucose, explain/describe what would happen, for each mutant, to the expression of the lac operon when you add lactose AND what would happen when the bacteria has used up all of the lactose (if the mutant is able to use lactose).5. Mutations in the lac operator that strengthen the binding of the lac repressor 200 fold 6. Mutations in the promoter that prevent binding of RNA polymerase 7. Mutations in CRP/CAP protein that prevent binding of cAMP8. Mutations in sigma factor that prevent binding of sigma to core RNA polymerase

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Question

Chapter 12.2, Problem 3C

Summary Introduction

To determine: The way by which Chargaff’s rule relates to the structure of DNA.

Concept introduction: DNA is double stranded consisting of two strands of nucleotides. The bases in one strand are complementary to the bases on the other strand. During DNA replication, the two strands of parent DNA molecule separate. The parent strands act as templates along which the DNA polymerases add up the complementary base pairs in the context of base-pairing rules.

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