TLS Online TPP Program

#Question id: 18608


In an experiment, A 5kb DNA undergoes PCR using primer, after electrophoresis instead getting a 5kb band, two set of PCR band are found of 5kb and 3kb, this is due to

#Unit 13. Methods in Biology
  1. binding of primer 5’ only
  2. binding of primer at 3’ end only
  3. binding of one primer at terminal and one after 2kb
  4. both primer binds after 2kb
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TLS Online TPP Program

#Question id: 28035

#Unit 1. Molecules and their Interaction Relevant to Biology

Intrinsically disordered proteins  
a. Have hydrophobic core
b. High densities of charged amino acid residues 
c. Pro residues are also prominent
d. Generally promiscus in nature
e. lack a hydrophobic core

Which of the following is correct 

TLS Online TPP Program

#Question id: 23891

#Unit 13. Methods in Biology

Which of the following is (are) used both in the polymerase chain reaction (PCR) and in DNA sequencing?
a. single-stranded DNA primers
b. deoxynucleotide triphosphates (dNTPs)
c. dideoxynucleotide triphosphates (ddNTPs)
d. DNA polymerase

TLS Online TPP Program

#Question id: 2683

#Unit 2. Cellular Organization

An inverted repeat is best described as:

TLS Online TPP Program

#Question id: 10566

#Unit 6. System Physiology – Plant

What happens if this cell is placed in the beaker containing 0.1 M sucrose, Because the water potential of the sucrose solution (Yw = –0.244) is greater than the water potential of the cell (Yw = –0.732 MPa)

a) Water will move from the cell to the sucrose solution

b) From high to low water potential

c) From low to high water potential

d) Water will move from the sucrose solution to the cell

Which of the following statement is CORRECT?

TLS Online TPP Program

#Question id: 10304

#Unit 6. System Physiology – Plant

Pyruvate is coverted into the Acetyl-CoA, Acetyl-CoA contain the acetyl group which are comes from the pyruvate and Coenzyme A (CoA) that contain other groups such as;

a) A reactive thiol (—SH) group that is critical to the role of CoA as an acyl carrier in a number of metabolic reactions

b) contain pantothenic acid,  A hydroxyl group of pantothenic acid is joined to a modified ADP moiety by a phosphate ester bond

c) pantothenic acid carboxyl group is attached to β-mercaptoethylamine in amide linkage

d) Hydroxyl group at the 3’ position of the ADP moiety has a phosphoryl group not present in free ADP

which of the following correct observation about Coenzyme A (CoA)?