Intervening sequences that are transcribed, but not translated into protein are called

A. exons.
B. introns.
C. splicesomes.
D. transposons.
E. transcription factors.


B. introns.

Biology & Microbiology

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Biosafety Level 4 agents:

a. include those that are the common agents of infectious disease. b. require only standard good laboratory technique. c. include M. tuberculosis, M. gordonae, and Brucella. d. require the use of maximum containment facilities.

Biology & Microbiology

Discuss some examples of different fields of biotechnology and what they study (e.g., bioremediation, which is used to assist in the clean-up of chemical spills, etc.)

What will be an ideal response?

Biology & Microbiology

Which of the following are primarily responsible for cytokinesis in plant cells but not in animal cells?

A) kinetochores B) Golgi-derived vesicles C) actin and myosin D) centrioles and centromeres

Biology & Microbiology

Enhancers are the binding sites for the

A. promoters of DNA synthesis. B. suppressor factors. C. specific transcription factors. D. coactivation factors. E. mediator factors.

Biology & Microbiology