You need to represent a molecule to best illustrate the relative sizes of the atoms involved and their interrelationships. Which representation would work best?
A) molecular formula
B) structural formula
C) ball-and-stick model
D) space-filling model
D
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The eukaryotic transcription initiation complex is
_____ transcription of virtually all genes transcribed by RNA pol II requiring the same suite of general factors. _____ responsible for highly regulated transcription levels. _____ only associated with RNA polymerase I. _____ interactive with activators through DNA looping. _____ a basal factor associated with RNA pol II after positioning RNA pol II at the start site.
Autotrophs include which of the following?
(a) fungi. (b) plants. (c) animals. (d) all of the above.
The class of organic molecules defined by a physical property rather than a structure are the:
A. lipids B. carbohydrates C. proteins D. DNA E. RNA
An avalanche is an example of _____________ energy
A. kinetic B. chemical C. potential D. metabolic E. anabolic