代写范文

留学资讯

写作技巧

论文代写专题

服务承诺

资金托管
原创保证
实力保障
24小时客服
使命必达

51Due提供Essay,Paper,Report,Assignment等学科作业的代写与辅导,同时涵盖Personal Statement,转学申请等留学文书代写。

51Due将让你达成学业目标
51Due将让你达成学业目标
51Due将让你达成学业目标
51Due将让你达成学业目标

私人订制你的未来职场 世界名企,高端行业岗位等 在新的起点上实现更高水平的发展

积累工作经验
多元化文化交流
专业实操技能
建立人际资源圈

Ampicillin_Resistance

2013-11-13 来源: 类别: 更多范文

Ampicillin Resistance The purpose of this lab experiment was to see if a person could use a plasmid (R plasmid) vector containing certain fragments of foreign DNA for ampicillin resistance to be used to transform E. coli (Escherichia coli) cells to give the E. coli cells ampicillin resistance. Ampicillin resistance is needed in order for the E. coli to have the ability to survive in an ampicillin environment. Plasmid is a small ring of DNA that carries accessory genes separate from those of bacterial chromosome. Ampicillin is an antibiotic that is derived from penicillin that prevents bacterial growth by interfering with cell wall synthesis. E. coli is a commensal bacterium inhabiting the human colon that is widely used in biology, both as a simple model of cell biochemical function and as a host for molecular cloning experiments. In nature genes can be transferred between bacteria in different ways like transformation, conjugation, and transduction. One-way is bacterial transformation, it is when transfer of genetic information into a cell by the direct uptake of the DNA. Then the DNA is used to transform the cells from the original DNA to take a certain trait. How ever these amplocollin, resistance, plates, bacteria, plasmid, agar, coli, one, two, tubes, growth, cells, pipet, cell, tube, plate, out, luria, dna, able, sterile, spreader, solution, right, put, over, new, make, ice, due, between, been, bacterial, antibiotic, sure, incorporated, experiment, environment, different, data, chloride, both, because, add, water, transfer, take, results, procedure, plasmids
上一篇:Capital_Punishment__A_Look_Int 下一篇:Endoplasmic_Reticulum