It is important that the healthcare worker swabs the patients tongue when obtaining a throat culture.
a. true
b. false
Ans: b. false
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Which of the following are "usable" forms of nitrogen (N) and sulfur (S) that plants and animals can use to build proteins?
A. both N2 and NO3 B. both S2 and S3 C. both SO4 and NO3 D. both NH3 and S2 E. both N2 and S2
_________ make it possible for researchers to study how an entire genome responds to an environmental stimulus
A. Bioinformatics B. PCR reactions C. DNA microarrays D. The BLAST program
A newborn baby dies soon after birth because her diaphragm and rib cage muscles failed to contract and she was unable to breathe on her own. Examination of the baby’s DNA revealed that she had a genetic mutation in a gene that encoded a calcium-binding protein. Which protein was most likely defective in the baby?
A. actin B. myosin C. acetylcholine D. tropomyosin E. troponin Clarify Question · What is the key concept addressed by the question? · What type of thinking is required? Gather Content · What do you know about the proteins the bind to calcium in a muscle contraction? What other information is related to the question? Choose Answer · Given what you now know, what information is most likely to produce the correct answer? Reflect on Process · Did your problem-solving process lead you to the correct answer? If not, where did the process break down or lead you astray? How can you revise your approach to produce a more desirable result?
The DNA sequence 5? ATGGGGGACACC 3? encodes the amino acids Met Gly Asp Thr. A mutation changes the sequence to 5? ATGGGGAACACC 3? that encodes the amino acids Met Gly Asn Thr. What type of mutation has occurred?
A) frameshift mutation B) missense mutation C) silent mutation D) nonsense mutation