题目
单项选择题
When a bacterium takes up DNA from the extracellular environment it is known as:
选项
A.Transduction
B.Replication
C.Transformation
D.Translation
E.Transposition
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标准答案
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思路分析
In this question, the focus is on how bacteria acquire DNA from outside their cells.
Option 1: Transduction — this involves DNA transfer mediated by bacteriophages, not direct uptake ......Login to view full explanation登录即可查看完整答案
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类似问题
Bacterial transformation is a highly efficient process
If an experiment is set up to show transformation in bacteria, what must be present in the environment for it to be successful?
In a transformation experiment, a sample of E. coli bacteria was mixed with a plasmid containing the gene for resistance to the antibiotic ampicillin (ampr). Plasmid was not added to a second sample. Samples were plated on nutrient agar plates, some of which were supplemented with the antibiotic ampicillin. The results of E. coli growth are summarized below. The shaded area represents extensive growth of bacteria; dots represent individual colonies of bacteria. Plates that have only ampicillin-resistant bacteria growing include which of the following?
Bacterial transformation occurs when
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