Water is a polar molecule: the oxygen atom with its unshared electrons carries a partial negative charge (δ−) of ___________, and the hydrogen atoms each carry a partial positive charge (δ+) of __________, where e is the charge of the electron.

TLS Online TPP Program

#Question id: 19789

#Unit 13. Methods in Biology

How to determine the size of PCR product?

TLS Online TPP Program

#Question id: 19790

#Unit 13. Methods in Biology

What will be the major difference between the PCR and replication is?

TLS Online TPP Program

#Question id: 19791

#Unit 13. Methods in Biology

Which of the following statements about polymerase chain reaction is correct?

a) PCR denaturation temperature calculated by using Y = X (1+E)n

b) Size of the primer negatively affects the efficiency of PCR

c) Standard PCR doesn’t efficiently amplify sequence much longer than about 5kb.

d) Primer annealing of PCR at 550C for 1.5 min.

e) Time taken for each cycle of PCR considerably longer than 3 min.

TLS Online TPP Program

#Question id: 19792

#Unit 12. Applied Biology

Expression of BtR175 gene in mammalian cells enables Cry1Aa to bind the cells and cause their lysis. The specificity seems to be lost upon reduction of which amino acid residues of the protoxin, but can be restored by reoxidation of these residues?

TLS Online TPP Program

#Question id: 19793

#Unit 12. Applied Biology

The specificity of cry protein seems to be lost upon reduction of which amino acid residues of the protoxin, but can be restored by reoxidation of these residues?

TLS Online TPP Program

#Question id: 19794

#Unit 12. Applied Biology

The specificity of cry protein is lost upon reduction of cysteine residues of the protoxin, but can be restored by