TLS Online TPP Program

#Question id: 18732


Mechanism of ligation for both T4 DNA ligase and E. coli DNA ligase makes use of Adenosine Monophosphate (AMP). Which of the steps is involved in the ligation mechanism?

#Part-A Aptitude & General Biotechnology
  1. AMP is added to the 5’ phosphate of one of the DNA molecules
  2. It leads to the liberation of pyrophosphate from NAD and nicotinamide mononucleotide from ATP
  3. The AMP is further displaced by an electrophilic attack
  4. The AMP is further displaced by nucleophilic attack by 3’ hydroxyl of the same DNA molecule
More Questions
TLS Online TPP Program

#Question id: 5700

#Part-A Aptitude & General Biotechnology

During meiosis, homologous chromosomes pair up along their lengths. The most plausible explanation for the karyotype structure shown above is that

TLS Online TPP Program

#Question id: 5700

#Part-B Specialized Branches in Biotechnology

During meiosis, homologous chromosomes pair up along their lengths. The most plausible explanation for the karyotype structure shown above is that

TLS Online TPP Program

#Question id: 5700

#Part-A Aptitude & General Biotechnology

During meiosis, homologous chromosomes pair up along their lengths. The most plausible explanation for the karyotype structure shown above is that

TLS Online TPP Program

#Question id: 5701

#Part-A Aptitude & General Biotechnology

Cross-over suppressors are production of gametes having cross over products is lethal. Which of the following statement is incorrect?

TLS Online TPP Program

#Question id: 5701

#Part-B Specialized Branches in Biotechnology

Cross-over suppressors are production of gametes having cross over products is lethal. Which of the following statement is incorrect?

TLS Online TPP Program

#Question id: 5702

#Part-B Specialized Branches in Biotechnology

What is probability of couple where male is karyotypically normal and the female in pericentric inversion in heterozygous condition produced child with disability if no crossing over takes placed within pericentric inversion. (Note: Duplication and deletion in gamete will results  in disability)