Practice Questions

  1. Home
  2. Free Resources
  3. Practice Questions
  4. 12550
TLS Online TPP Program

#Question id: 378

Which of the following statements about buffers is true?

#Section 4: Fundamentals of Biological Engineering

  1. A buffer composed of a weak acid of pKa = 5 is stronger at pH 4 than at pH 6.

  2. At pH values higher than the pKa, the salt concentration is higher than that of the acid.

  3. The strongest buffers are those composed of strong acids and strong bases.

  4. When pH = pKa, the weak acid and salt concentrations in a buffer are equal.

More Questions
TLS Online TPP Program

#Question id: 12943

#Section 7: Recombinant DNA technology and Other Tools in Biotechnology

Choose the correct order for the steps involve in Insitu hybridization.
1. Cell permeaabilisation
2. Detection of hybridised probe radioactive.
3. Wash excess probe from section
4. Cell fixation
TLS Online TPP Program

#Question id: 12944

#Section 7: Recombinant DNA technology and Other Tools in Biotechnology

Match the following-

A.Tyrosine kinase.1. Kaposis sacroma
B.HIV Transactivator.
2. Hypertension
C. Angiotensinogen.3.Atherosclerosis
D.CET protein4. Cardiac hypertrophy
TLS Online TPP Program

#Question id: 12945

#Section 7: Recombinant DNA technology and Other Tools in Biotechnology

It is a PCR based multiplex assay that allows a number of target sites such as deletions, duplications, mutations to be amplified with a pair of primer containing probes.
TLS Online TPP Program

#Question id: 12946

#Section 7: Recombinant DNA technology and Other Tools in Biotechnology

Choose the incorrect statement for the Multiple Ligation dependent probe amplification.
TLS Online TPP Program

#Question id: 12947

#Section 7: Recombinant DNA technology and Other Tools in Biotechnology

Match the following-

A. G- proteins.1. src
B. Growth factors.2. erbB
C. Protein kinases.3. N-ras
D. Growth factor receptor.4. hst
TLS Online TPP Program

#Question id: 12948

#Section 7: Recombinant DNA technology and Other Tools in Biotechnology

Proteolytic cleavage of DNA polymerase by subtilisin caused loss of its nick translation activity. Which of the following properties is lost?