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TLS Online TPP Program

#Question id: 598

Which might be a method used for distinguishing among several mechanistic possibilities in a multi-substrate reaction?

#Unit 1. Molecules and their Interaction Relevant to Biology

  1. Measure Km in the presence of one substrate at a time.

  2. Measure the rate with respect to one substrate while varying the concentration of another substrate.

  3. Measure the rate while adding inactivators for all but one substrate.

  4. Any of the above

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TLS Online TPP Program

#Question id: 13225

#Unit 6. System Physiology – Plant

 The three elements are not considered mineral nutrients these are-
TLS Online TPP Program

#Question id: 389

#Unit 1. Molecules and their Interaction Relevant to Biology

A weak acid HA has a pKa of 5.0.  If 1.0 mol of this acid and 0.1 mol of NaOH were dissolved in one liter of water, what would the final pH be?
TLS Online TPP Program

#Question id: 746

#Unit 1. Molecules and their Interaction Relevant to Biology

Two separate chains of DNA are wound around each other, each following a helical (coiling) path, resulting in:
TLS Online TPP Program

#Question id: 23650

#General Aptitude

If it is possible to make a number which is a perfect square of a two digit even number with the second, fifth and sixth digits of the number 46789153, which of the following will be first digit of that three digit number?
TLS Online TPP Program

#Question id: 15003

#Unit 8. Inheritance Biology

Laurie met her husband Jim at a support group for families dealing with PKU (phenylketonurea), a recessive genetic disorder. Laurie and Jim both have one sister who is affected with PKU and no other family history of the disorder. They come to you as a genetic counselor to ask what their risk is of having an affected child. What do you tell them?