Practice Questions

TLS Online TPP Program

#Question id: 3865

Which of the following statements about E. coli RNA polymerase is false?

#Unit 3. Fundamental Processes

Core enzyme selectively binds promoter regions, but cannot initiate synthesis without a sigma factor.
RNA polymerase holoenzyme has several subunits.
RNA produced by this enzyme will be completely complementary to the DNA template.
The enzyme adds nucleotides to the 3' end of the growing RNA chain.

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TLS Online TPP Program

#Question id: 15705

#Unit 12. Applied Biology

IAA or IBA auxins alone or in combination with a low concentration of cytokinin are important in the induction of

TLS Online TPP Program

#Question id: 3446

#Unit 11. Evolution and Behavior

Which of the following is least related to the others?

TLS Online TPP Program

#Question id: 14853

#Unit 13. Methods in Biology

If the sum of the mean and the variance of a Binomial distribution for 18 trials is 10, find the distribution

TLS Online TPP Program

#Question id: 883

#Unit 1. Molecules and their Interaction Relevant to Biology

The “core autophagy machinery” controls the initiation and growth of the autophagosome and has been divided into three main protein groups:

i. A-ATG9, B-TOR, C-PI(3) Complex

ii. A- ATG9, B-PI(3) Complex, C-TOR

iii. The TOR kinase complex acts as a negative regulator of autophagy

iv. The TOR kinase complex acts as a positive regulator of autophagy

TLS Online TPP Program

#Question id: 13140

#Unit 10. Ecological Principles

One summer the moose population on Island was unusually high, and park naturalists noticed signs of malnutrition among the adults. The wolf population was fairly low, near 20. That winter, for the first time in many years, a substantial number of seemingly healthy adult moose as well as calves and crippled animals were killed and eaten by wolves. This description is part of a general situation in which the wolf and moose populations