Ans .There are 2 types of nucleosides present in our DNA purine and pyrimidine. Purines are adenine and granine. Pyrimidine are cytosine ,thymine, uracil. Biosynthesis of pyrimidine in bacteria is allosterically regulated at asparate transcarbomylase (ATCase ) .In case of bacteria this ATCase is feedback inhibited by end product CTP. ATP act as signal for both purine sufficieny and energy availability, it is also an allosteric activator of ATCase .ATP and CTP both compete for allosteric site on enzyme. In mammals CSP II catalyses the committed step in pyrimidine synthesis and serves as main point for allosteric regulation .UTP and UDP are feedback inhibitors for CSP II while ATP and PRPP are allosteric activators.
Compare and Contrast the regulation of pyramidine biosynthesis in bacteria and mammals.
Answer any two and only two of the following. a. Provide an overview of purine nucleotide biosynthesis and discuss its regulation. b. Describe the urea cycle including its function, energy costs and regulation. c. Give an overview of lysine, threonine, methionine, and isoleucine biosynthesis in bacteria and discuss its regulation. d. Discuss the transcriptional control of the HMG-CoA reductase gene and over 20 other genes linked to cholesterol and fatty acid metabolism. e. Compare and contrast the regulation of pyrimidine biosynthesis in bacteria and mammals.
compare and contrast breathing in fish and mammals
Compare and contrast some of the changes that occur in the biosynthesis and diversification of N-Glycan and O-glycan structures in normal and malignant cells. Using examples to illustrate your answer, describe the consequences of these changes in terms of lectin-glycan interactions and tumour progression
In terms of metabolic and genetic diversity, compare and contrast protists and bacteria.
Please help compare and contrast the page attached, thanks! Assignment: Bacteria versus Eukaryotes In the space below, compare and contrast the processes of DNA replication, transcription and translation in bacteria and eukaryotes. DNA replication: Bacteria Vs. Eukaryotes Transcription: Bacteria Vs. Eukaryotes Translation: Bacteria Vs. Eukaryotes
2) Compare and contrast the RNA polymerases of bacteria and eukaryotes te 3) Discuss rho- independent vs rho-dependent termination in bacteria.
Compare and contrast general structure of bacteria, fungi and viruses. Indicate both hazardous and beneficial impact they have on human life with giving one specific example for each. 1. Fungi 2. Bacteria 3. Viruses - This is microbiology
5) Compare and contrast Archaea and Bacteria. 6) How have protists traditionally been classified? Explain and provide an example of each. 7) To conquer the land, what sort of adaptations did early land plants have to develop? 8) Compare and contrast nonvascular plants and vascular plants.
1. Compare and contrast how transcriptional activators function at the molecular level in bacteria and in eukaryotes. List at least one similarity and one difference between their mechanisms of action. Note that this question asks about transcriptional activators in general, not about a particular activator.
Bacteria acquire genes by a number of different methods. Compare and contrast bacterial transduction to bacterial conjugation. In your answer describe how these methods are similar or different, how they work, and give specific examples of genes that are acquired for each method.