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TLS Online TPP Program

#Question id: 626

A metabolic pathway proceeds according to the scheme, R -> S -> T -> U -> V -> W.  A regulatory enzyme, X, catalyzes the first reaction in the pathway.  Which of the following is most likely correct for this pathway?

#Section 2: General Biology

  1. Either metabolite U or V is likely to be a positive modulator, increasing the activity of X.

  2. The first product S, is probably the primary negative modulator of X, leading to feedback inhibition.

  3. The last product, W, is likely to be a negative modulator of X, leading to feedback inhibition.

  4. The last product, W, is likely to be a positive modulator, increasing the activity of X.

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TLS Online TPP Program

#Question id: 1705

#Section 2: General Biology

What is the single best definition of the most common form of antigen recognized by the T-cell receptor (TCR)
TLS Online TPP Program

#Question id: 18220

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

Which of the following are the subtype of RNA structure
TLS Online TPP Program

#Question id: 3663

#Section 3: Genetics, Cellular and Molecular Biology

_______________ is a specific RNase which cuts RNA–DNA hybrids; involved in replication of ColE1-like plasmids.
TLS Online TPP Program

#Question id: 2326

#Section 3: Genetics, Cellular and Molecular Biology

The movement of chromosomes during mitosis is due to the:
TLS Online TPP Program

#Question id: 27059

#Section 4: Fundamentals of Biological Engineering

What is the heat of reaction if the heat of combustion of products is 10 J and heat of combustion of reactants is 5 J?