TLS Online TPP Program

#Question id: 5201


How is a physical map of the genome of an organism achieved?

#Unit 11. Evolution and Behavior
  1. using recombination frequency

  2. using very high-powered microscopy

  3. using restriction enzyme cutting sites

  4. using sequencing of nucleotides

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TLS Online TPP Program

#Question id: 3840

#Unit 3. Fundamental Processes

The mechanism of DNA replication is studied in an E. coli replication fork. When will this fork stop replicating DNA?

TLS Online TPP Program

#Question id: 23865

#Unit 13. Methods in Biology

Reproductive cloning of human embryos is generally considered unethical. However, on the subject of therapeutic cloning there is a wider divergence of opinion. Which of the following is a likely explanation?

TLS Online TPP Program

#Question id: 16146

#Unit 4. Cell Communication and Cell Signaling

If a given lymphocyte divides to form two daughter cells, both daughters bear antigen receptors with antigen specificities identical to each other and to the parental cell from which they arose, and so will any descendants they produce. The resulting population of lymphocytes, all arising from the same founding lymphocyte, is a clone. Which interleukin is responsible for clone production?

TLS Online TPP Program

#Question id: 11549

#Unit 7. System Physiology – Animal

If a biochemist discovers a new molecule, which of the following pieces of data would allow her to draw the conclusion that the molecule is a steroid hormone?

I) The molecule is lipid soluble.

II) The molecule is derived from a series of steps beginning with cholesterol.

III) The molecule acts at a target tissue some distance from where it is produced.

IV) The molecule uses a transport protein when in an aqueous solution such as blood.

TLS Online TPP Program

#Question id: 24570

#Unit 10. Ecological Principles

Geometric growth describes the population growth where is the N0= 100 is the number of females currently in the population,  what is the population size after the five generation if R0= 1.4 ?