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TLS Online TPP Program

#Question id: 1981

Which of the following is accounted for by immunological memory?

#Section 2: General Biology

  1. the human bodyʹs ability to distinguish self from nonself

  2. the observation that some strains of the pathogen that causes dengue fever cause worse disease than others

  3. the ability of a helper T cell to signal B cells via cytokines

  4. the ancient observation that someone who had recovered from the plague could safely care for those newly diseased

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TLS Online TPP Program

#Question id: 3742

#Section 3: Genetics, Cellular and Molecular Biology

The general excision repair pathway for DNA repair has the following order:
TLS Online TPP Program

#Question id: 27248

#Section 3: Genetics, Cellular and Molecular Biology

Which of the following forces can stabilize a normal DNA double-helix?
TLS Online TPP Program

#Question id: 3666

#Section 3: Genetics, Cellular and Molecular Biology

RNA-directed RNA polymerase, used in replication of some RNA viruses termed as:
TLS Online TPP Program

#Question id: 560

#Section 2: General Biology

Vmax for an enzyme-catalyzed reaction:
TLS Online TPP Program

#Question id: 563

#Section 2: General Biology

Both water and glucose share an —OH that can serve as a substrate for a reaction with the terminal phosphate of ATP catalyzed by hexokinase.  Glucose, however, is about a million times more reactive as a substrate than water.  The best explanation is that: