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BS 161 EXAM 1 PRACTICE QUESTIONS WITH CORRECT ANSWERS

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BS 161 EXAM 1 PRACTICE QUESTIONS WITH CORRECT ANSWERS

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At the pH of the cell, the amino group of the amino acid shown below is usually:


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positively charged




If protease treatment in Avery, MacLeod, and McCarty's experiment prevented the
transformation of bacteria, what would have been the conclusion of these
researchers?


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Protein is the genetic/hereditary material.

,In some experiments, several identical groups are set up, keeping conditions similar
among them. In the _____ group, a change is deliberately introduced. In the _____ group,
this change is not introduced. In this way, the researcher can determine if the change
has an effect.


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test; control




The genetic code is often described as specific, universal, and redundant. Which of
the following explains how the genetic code is redundant? ****


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There can be multiple codons that specify the same amino acid




A consecutive sequence of codons following a start codon is called a:


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reading frame




Pyrimidine and purine bases are found in:


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, nucleic acids.




An RNA transcript is synthesized in which direction?


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5' to 3'




Which of the following are common features of ALL living organisms?


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-ability to store information in DNA
-presence of a plasma membrane
-ability to capture energy from the environment




Based on the article, what do cytochrome P450 enzymes normally do in humans?


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-Cytochrome P450 enzymes protect against the negative effects of toxins.

-Cytochrome P450 enzymes metabolize drugs.




When DNA or genetic information is passed between bacteria (and bacteria take up
this material from their surrounding environment), this process is referred to as:

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