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TLS Online TPP Program

#Question id: 1121

Which of the following provides the best evidence that cell-signaling pathways evolved early in the history of life?

#Section 3: Genetics, Cellular and Molecular Biology

  1. Cell-signaling pathways are seen in "primitive" cells such as bacteria and yeast.

  2. Bacteria and yeast cells signal each other in a process called quorum sensing.

  3. Signal transduction molecules identified in distantly related organisms are similar.

  4. Most signals in all types of cells are received by cell surface receptors.

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TLS Online TPP Program

#Question id: 14422

#Section 1: Engineering Mathematics

If for the non-singular matrix A, A^2 = I, then find A^-1
TLS Online TPP Program

#Question id: 2283

#Section 3: Genetics, Cellular and Molecular Biology

Most cells are very small. A typical eukaryotic cell, both plant and animal, will occur in which of the following size ranges?
TLS Online TPP Program

#Question id: 15401

#Section 1: Engineering Mathematics

If roots of the auxiliary equation of are real and equal,  the general solution of the differential equation is 
TLS Online TPP Program

#Question id: 12734

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

Name the US-based company which is able to provide personal genetic information based on analysis of disease genes such as diabetes and others.
TLS Online TPP Program

#Question id: 3806

#Section 3: Genetics, Cellular and Molecular Biology

How are damaged nucleotides recognized by DNA repair enzymes?