Practice Questions

  1. Home
  2. Free Resources
  3. Practice Questions
  4. 24742
TLS Online TPP Program

#Question id: 19790

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

#Part-A Aptitude & General Biotechnology
  1. PCR depends upon the nucleotide while replication is depend upon the nucleotide as well as amplicons for analysing its efficiency
  2. PCR based on the inter complementary primers while replication isn’t
  3. PCR is based on Primer while replication is based on Origin site.
  4. PCR is based on Origin site while replication is based on Primer.
More Questions
TLS Online TPP Program

#Question id: 891

#Part-B Specialized Branches in Biotechnology

The folding pathways of some proteins require two enzymes that catalyze isomerization reactions such as,

a) Peptide prolyl isomerase (PPI)  catalyzes the elimination of folding intermediates with inappropriate disulfide cross-links

b) Protein disulfide isomerase (PDI) enzyme that catalyzes the interchange, or shuffling, of disulfide bonds until the bonds of the native conformation are formed

c) Peptide prolyl cis-trans isomerase (PPI) catalyzes the interconversion of the cis and trans isomers of Proline residue peptide bonds

d) Peptide prolyl isomerase (PPI) can be a fast step in the folding of proteins that contain some Pro peptide bonds in the cis conformation

Which of the following combinations is correct about protein folding pathways?
TLS Online TPP Program

#Question id: 13082

#Part-A Aptitude & General Biotechnology

Statement: AFLP shares some features of both RFLP and RAPD analyses.
Explanations: I. It uses restriction enzyme-digested genomic DNA as template for PCR amplification using primers that contain the restriction enzyme recognition sites plus a number of, usually 2-3, arbitrary nucleotides.
II. AFLPs are faster, less labour intensive and provide more information than RFLPs, and they are highly reproducible, which is a great advantage over RAPDs.
TLS Online TPP Program

#Question id: 4741

#Part-A Aptitude & General Biotechnology

The F2 progeny from a particular cross exhibit a modified dihybrid ratio of 9 : 7 (instead of 9 : 3 : 3 : 1). What phenotypic ratio would be expected from a testcross of the F1?
TLS Online TPP Program

#Question id: 12688

#Part-A Aptitude & General Biotechnology

The perimeter of five squares are 24 cm, 32 cm, 40 cm, 76 cm and 80 cm respectively. The perimeter of another square equal in area to sum of the areas of these squares is :
TLS Online TPP Program

#Question id: 15173

#Part-B Specialized Branches in Biotechnology

Microbes such as Chlorobium and Chromatium develop as visible green and purple zones. These microorganisms use