Oxytocin can generate feelings of well-being as well as anxiety and stress
Indicate whether the statement is true or false.
ANSWER: True
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Reshaping the cornea using lasers is often used to treat
a. astigmatism. b. retinoblastoma. c. myopia. d. glaucoma. e. cataracts.
Identify the organism in the picture and the supergroup it belongs to. What characteristic(s) helped you to identify the organism? 
What will be an ideal response?
A researcher wants to mutagenize an organism. He is not in need of a large number of mutants but is more concerned with being able to find and then to amplify the mutated sequence. Which of the following would therefore be more useful?
A) ionizing radiation B) UV radiation C) transposon insertion D) a chemical mutagen E) search for spontaneous mutant
Which of the following is not a feature commonly observed in ? helices?
(a) left-handedness (b) one helical turn every 3.6 amino acids (c) cylindrical shape (d) amino acid side chains that point outward