of following is the best choice for storage of extracted DNA
sample:____
A: ultrapure
water
B: TE
buffer
C: 75%
ethanol
D: TBE
buffer
举一反三
- Which of following is the best choice for storage of extracted DNA sample: A: ultrapure water B: TE buffer C: 75% ethanol D: TBE buffer
- The major compensatory pathway in acute metabolic acidosis is () A: Buffer<br/>effect of cells. B: Respiratory<br/>regulation. C: Buffer<br/>system in the blood. D: Renal<br/>regulation. E: Buffer<br/>effect of bones.
- <br/>The major compensatory pathway in acute metabolic acidosis is () A: Buffer<br/>effect of cells. B: Respiratory<br/>regulation. C: Buffer system in<br/>the blood. D: Renal regulation. E: Buffer effect of<br/>bones.
- Which<br/>of the following issues are not owing to Industrializing agriculture<br/>and “chemicalization” of agriculture () A: Water<br/>shortage B: Land<br/>pollution C: Financial<br/>failure D: Soil<br/>erosion
- A<br/>sample in which the characteristics of the sample are the same as<br/>those of the population is a ( ) A: variables<br/>sample. B: representative<br/>sample. C: attributes<br/>sample. D: random<br/>sample.
内容
- 0
The<br/>process which requires the calculation of an interval and then<br/>selects the items based on the size of the interval is ( <br/>) A: statistical<br/>sampling. B: random<br/>sample selection. C: systematic<br/>sample selection. D: computerized<br/>sample selection.
- 1
Counter<br/>sample can also be called _____________.() A: duplicate<br/>sample B: sealed<br/>sample C: confirmed<br/>sample D: contracted<br/>sample
- 2
Which<br/>of the following systemic hyperthermia approaches belongs to the<br/>minimally invasive treatment of tumor?() A: Hot<br/>water bath B: Infrared<br/>irradiation C: Vascular<br/>interventional hyperthermia D: Electromagnetic<br/>heating
- 3
Which<br/>of the following statement about DNA polymerase of eukaryotes is NOT<br/>true:() A: DNA<br/>pol α/primase are involved in initial synthesis of the nascent<br/>strand. B: DNA<br/>polδ and ε are mainly responsible for the synthesis of<br/>DNA chains. C: Replacement<br/>of DNA polymerase could happen during DNA synthesis process. D: There<br/>are five kinds of DNA pol:α、β、γ、δ<br/>and ε in eukaryotes
- 4
(Single Choice)Which<br/>of the following is not one of the five basic phases of the<br/>management process?( ) A: Controlling B: Decision<br/>making C: Operating D: Planning