TLS Online TPP Program

#Question id: 2772


Mobile DNA elements likely contributed to the evolution of higher organisms by the

#Unit 2. Cellular Organization
  1. generation of gene families by gene duplication.

  2. creation of new genes by exon shuffling.

  3. formation of more complex regulatory regions.

  4. all of the above

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TLS Online TPP Program

#Question id: 3835

#Unit 3. Fundamental Processes

State whether the following statements is true/false regarding DNA replication.

1. A short primer is added to the DNA polymerase reaction mix for Sanger DNA sequencing that has a 5สน free hydroxyl to which new nucleotides can be added.

2. In a sequencing gel, all fragment in one of the four lanes terminates in the same type of nucleotide base.

3. Eukaryotic cells contain at least five DNA polymerases all of which are responsible for nuclear DNA replication.

4. Since the rate of form movement in eukaryotes is much slower than that of bacteria, chromosomes require more than an hour to replicate.

5. Although histones and DNA are made in the same parts of the eukaryotic cell, the packaging of them in the nucleosome slows down replication so that it is slower than that of prokaryotes.

TLS Online TPP Program

#Question id: 28470

#Unit 5. Developmental Biology

blastomere of a 2-cell embryo can form both trophoblast cells and the embryo precursor cells of the ICM, these very early cells are said to be___.

TLS Online TPP Program

#Question id: 7487

#General Aptitude

At what time between 4 and 5 are the hands 2 minute spaces apart?

TLS Online TPP Program

#Question id: 31213

#Unit 4. Cell Communication and Cell Signaling

Following genes play an essential role in controlling apoptosis during C. elegans development, except: 

TLS Online TPP Program

#Question id: 1489

#Unit 4. Cell Communication and Cell Signaling

How might you distinguish between a malignant tumor and a benign tumor?