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TLS Online TPP Program

#Question id: 8925

What is the probable sequence in which the following clades of animals originated, from earliest to most recent?
1. tetrapods
2. vertebrates
3. deuterostomes
4. amniotes
5. bilaterians

#Section 6: Plant, Animal and Microbial Biotechnology
  1. 5 → 3 → 2 → 4 → 1
  2. 5 → 3 → 2 → 1 → 4
  3. 5 → 3 → 4 → 2 → 1
  4. 3 → 5 → 4 → 2 → 1
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TLS Online TPP Program

#Question id: 14636

#Section 1: Engineering Mathematics
TLS Online TPP Program

#Question id: 4815

#Section 3: Genetics, Cellular and Molecular Biology

The cross over percentage between linked genes J and M is 20%, J and L is 35%, J and N is 70%, L and K is 15%, M and N 50%. The sequence of genes on the chromosome is
TLS Online TPP Program

#Question id: 12909

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

According to the diagram, arrange the steps in correct order: 


1. DNA is then digested by the Cas9 nuclease at specific points on both DNA strands. 
2. Homologous recombination to repair the break and incorporate the new DNA sequence then follows. 
3.The nuclease Cas9 is targeted to DNA by a guide RNA consisting of a specific 20 nucleotide spacer/targeting sequence (crRNA).
 4. That identifies the DNA to be modified, linked to a trans-activating (tracrRNA) sequence necessary for the recruitment and stability of Cas9 nuclease.
TLS Online TPP Program

#Question id: 10524

#Section 6: Plant, Animal and Microbial Biotechnology

Members of the Poaceae family, which includes all of the cereal crops, use benzoxazinoids, these alkaloids shows;

a) Alkaloids are derived from the tryptophan as constitutively produced defensive secondary metabolites

b) These benzoxazinoids such as DIBOA and its derivative DIMBOA are usually stored in the peroxisome

c) Upon damage, the inactive glycosides are hydrolyzed, generating glucosinolate, which are toxic not only to insect herbivores but also against pathogens

d) DIBOA and DIMBOA perform insecticidal and pesticidal activities

e) It can be inactivated by hydroxylation and N-glycosylation reactions

Which of the following combination is correct about benzoxazinoids alkaloids?
TLS Online TPP Program

#Question id: 1424

#Section 3: Genetics, Cellular and Molecular Biology

Gain-of-function mutations in which of the following genes typify colorectal carcinomas?