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TLS Online TPP Program

#Question id: 18850

Which of these chromatography types are suitable as a "capture" step in the purification of non-tagged proteins?

#Unit 13. Methods in Biology
  1. SEC
  2. Dialysis
  3. IEX and HIC
  4. Ammonium sulphate precipitation
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TLS Online TPP Program

#Question id: 11833

#Unit 6. System Physiology – Plant

Analysis of mRNA from tomato fruits from wild-type and transgenic tomato plants genetically engineered to lack ethylene has revealed that gene expression during ripening is regulated by at least two independent pathways;

I) Ethylene-dependent pathway

II) Ethylene-independent pathway

Some given genes involved in these two pathways,

a) ACC oxidase

b) respiratory metabolism

c) ACC synthase

d) chlorophyllase

e) lycopene and aroma biosynthesis

Which of the following is the correct combination from the given pathways and its included genes?
TLS Online TPP Program

#Question id: 538

#Unit 1. Molecules and their Interaction Relevant to Biology

Which of the following statements are correct about cells that form ATP mainly by glycolysis are

A) anaerobic yeasts.

B) lactic acid bacteria.

C) kidney medulla cells.
TLS Online TPP Program

#Question id: 2788

#Unit 2. Cellular Organization

DNA that is transcriptionally active
TLS Online TPP Program

#Question id: 12220

#Unit 7. System Physiology – Animal

A female patient has unexplained severe hypernatremia (plasma Na+ = 167 mmol/L) and complains of frequent urination and large urine volumes. A urine specimen reveals that the Na+ concentration is 15mmol/L (very low) and the osmolarity is 155 mOsm/L (very low). Laboratory tests reveal: plasma renin activity = 3 ng angiotensin I/ml/hr (normal = 1.0), plasma antidiuretic hormone (ADH) = 30 pg/ml (normal = 3 pg/ml), and plasma aldosterone = 20 ng/dL (normal = 6 ng/dL). Which of the following is the most likely reason for her hypernatremia?
TLS Online TPP Program

#Question id: 18657

#Unit 13. Methods in Biology

In SDS PAGE band sharpening effect are observed, this band sharpening effect arises due to the