Answer the following statements true (T) or false (F)
1. The proteome, rather than genome, is most directly responsible for the structure, function, and appearance of organisms.
2. Little scientific evidence is necessary when formulating a theory.
3. The maintenance of cell structure requires energy.
4. Discovery-based science and hypothesis testing are the two major scientific approaches that help us understand biology.
1. TRUE
2. FALSE
3. TRUE
4. TRUE
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Which of the following is true about base excision repair (BER) in bacteria?
A. BER is used to repair abasic sites created by hydrolysis or by DNA glycosylases. B. BER requires the action of a unique exinuclease activity to cleave 5' of the abasic site. C. At the nick created by the nuclease, Pol III can excise the damaged strand by nick translation. D. BER can be used to excise benzopyrene adducts. E. BER requires binding of the MutS protein to identify the abasic site.
Potable water
A. is not suitable for human consumption. B. requires boiling to make it safe to drink. C. is suitable for human consumption. D. requires chemical or biological treatment to remove heavy metals.
Where do you expect to find thermophiles?
A. In environments lacking oxygen B. In hot environments C. In salty environments D. In dry environments
The event in human history that changed the natural balance of the carbon cycle was the:a
Industrial Revolution b. Agricultural Revolution c. evolution of primates d. invention of farming e. invention of the telegraph