Prescott's Microbiology
11th Edition
ISBN: 9781260211887
Author: WILLEY, Sandman, Wood
Publisher: McGraw Hill
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Chapter 42.4, Problem 1MI
Why are modular genes particularly suitable as platforms for the development of new natural products of industrial interest?
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Chapter 42 Solutions
Prescott's Microbiology
Ch. 42.1 - Why are the cells first fed lactose and then...Ch. 42.1 - What critical limiting factors are used in the...Ch. 42.1 - Prob. 2CCCh. 42.1 - What kinds of molecular changes result from...Ch. 42.1 - Prob. 4CCCh. 42.2 - Why is there interest in developing alternatives...Ch. 42.2 - What types of microbes are good candidates for the...Ch. 42.3 - What is the objective of the scale-up process and...Ch. 42.3 - What parameters can be monitored in a modern,...Ch. 42.3 - Which of the following are secondary metabolites:...
Ch. 42.4 - Why are modular genes particularly suitable as...Ch. 42.4 - Prob. 2MICh. 42.4 - Prob. 1CCCh. 42.4 - Prob. 2CCCh. 42.4 - What is metabolic engineering? Besides...Ch. 42.4 - What is high-throughput screening and why has it...Ch. 42.4 - Prob. 5CCCh. 42.5 - Prob. 1MICh. 42.5 - What is the Ti plasmid and how is it modified for...Ch. 42.5 - How is Bt toxin produced and why is it so widely...Ch. 42.5 - Prob. 3CCCh. 42.6 - Why are diatoms and magnetotactic bacteria of...Ch. 42.6 - Prob. 2CCCh. 42 - Prob. 1RCCh. 42 - Prob. 2RCCh. 42 - Prob. 3RCCh. 42 - Prob. 4RCCh. 42 - Prob. 5RCCh. 42 - Prob. 6RCCh. 42 - Prob. 7RCCh. 42 - Prob. 1ALCh. 42 - Prob. 2AL
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- Agrobacterium-mediated plant transformation is a method used to create transgenic plants. Agrobacterium tumefaciens, a soil bacterium works exceptionally well as a natural genetic engineer. Describe briefly the creation of a transgenic plant using A. tumefaciens with illustration.arrow_forwardWhat are site-recombinases? Describe in detail how cre- recombinase can be used to decipher the roles of specific genes and proteins in complex multicellular organisms? Explain how the cre-lox system can be used to examine the role of a particular gene in a specific type of tissue?arrow_forwardJackson Wang is a biologist working with the genetics of a thermophilic bacterium. He cloned a heat shock gene from the bacteria for further analysis. After cloning, he isolated the plasmid carrying his gene of interest for sequencing. Jackson finally received the nucleotide sequence of his gene. Explain in detail how he could verify whether the nucleotide sequence matches his gene of interest using the bioinformatics databases available.arrow_forward
- A) Outline the experimental procedure for cloning a eukaryotic gene and expressing it in E. coli. Focus on the essential steps starting with eukaryotic gene amplification to transformation of E. coli cells B) Explain how insertional inactivation can help you identify the colonies that carry the plasmid with your eukaryotic gene of interest C) Plasmids containing antibiotic resistance genes are widely used in gene cloning and other molecular biology techniques. What would happen if the eukaryotic gene was inserted into an antibiotic resistance gene on the plasmid?arrow_forwardWhat would be an advantage of using HaeIII for a cloning experiment? What would be a disadvantage?arrow_forwardWhy was it important to reconstruct production strains with induced mutations with strains bearing defined mutations?arrow_forward
- How many more genes in the plasmid (besides the insulin cDNA insert) are need to determine which bacterial cells have been transformed and to determine which transformed bacterial cells have a plasmid with the cDNA insulin insert? Prior to the ability to produce human insulin in bacteria, insulin was harvested from pig or cow carcasses. A visiting veterinarian told me that domestic cats did better on the “old insulin” than on the genetically engineered human insulin. How might a comparison of the amino acid sequences of cats, pigs, cows, and humans support or fail to support this claim? What is needed in the plasmid with the cDNA insert besides the gene for insulin to actually cause the bacteria to express the insulin gene and produce the insulin protein?arrow_forwardIn a transformation experiment involving a wild type bacterial strain with a recipient strain with mutations in genes f, g, h and i pairs of genes were analyzed for co-transformation with the following results: Gene Pair Co-transformation g+ i+ f+ i+ yes no f+ h+ Уes f+ g+ no g+ h+ h+ i+ no уes What is the linear order of these genes relative to cach other?arrow_forwardThe human hexokinase enzyme has the same function as the bacterial hexokinase enzyme but is somewhat different in its amino acid sequence. You have obtained a mutant bacterial strain in which the gene for hexokinase is missing. If you introduce into your mutant strain a DNA plasmid engineered to contain the DNA coding sequence of the human hexokinase gene, what must you also include? a)The human hexokinase promoter b)The bacterial hexokinase promoter c)Both the human and bacterial promoters d)You cannot engineer a bacteria to produce a human enzymearrow_forward
- What is o A vector derived from the tumor-inducing (Ti) plasmid of the bacterium Agrobacterium tumefaciens is the basis for an efficient method for introducing transgenes into plants?arrow_forwardBesides using vector-based methods to transform crop plants, elaborate on THREE (3) other methods to introduce gene of interest into plant cells for the production of transgenic crops.arrow_forwardDo all of them True/False 31) The process by which an electrical charge is used to introduce DNA into a cell to produce a transgenic organism is called electroporation.Answer: 32) Reproductive cloning is used to produce large amounts of mammalian proteins from transgenic agricultural animals such as cattle.Answer: 33) In gene addition, homologous recombination is used to remove the original gene and replace it with the cloned gene.Answer: 34) All stem cells have the potential to differentiateAnswer: 35) A bone marrow transplant involves the transfer of multipotent stem cellsAnswer: 36) The fact that in mammalian systems multiple genes may compensate for the loss of a gene is called gene redundancy.Answer:arrow_forward
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