TLS Online TPP Program

#Question id: 4148


Which of the following is true about the sorting pathway for proteins destined for incorporation into lysosomes or the plasma membrane of eukaryotic cells?

#Section 3: Genetics, Cellular and Molecular Biology
  1. Binding of SRP to the signal peptide and the ribosome temporarily accelerates protein synthesis.

  2. The newly synthesized polypeptides include a signal peptide at their carboxyl termini.

  3. The signal peptide is cleaved off inside the mitochondria by signal peptidase.

  4. The signal recognition particle (SRP) binds to the signal peptide soon after it appears outside the ribosome.

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TLS Online TPP Program

#Question id: 8918

#Section 6: Plant, Animal and Microbial Biotechnology

In individual insects of some species, whole chromosomes that carry larval genes are eliminated from the genomes of somatic cells at the time of metamorphosis. A consequence of this occurrence is that

TLS Online TPP Program

#Question id: 166

#Section 2: General Biology

For amino acids with neutral R groups, at any pH below the pI of the amino acid, the population of amino acids in solution will have:

TLS Online TPP Program

#Question id: 12942

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

Name a single - stranded uracil containing vector which is grown in a selectable host deficit of the enzymes.

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: 3730

#Section 3: Genetics, Cellular and Molecular Biology

Which is not part of the replisome?