Carotenoids are hydrophobic accessory pigments and vary widely in the color they can absorb
Indicate whether the statement is true or false.
Answer: TRUE
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The most common of the sexually transmitted viral diseases agents is
A. human papillomavirus. B. herpes virus. C. human immunodeficiency virus. D. leptospirosis.
Which of the following lifestyle changes would NOT boost the immune system?
A. reducing stress by practicing yoga B. walking 20 minutes a day C. eating amino acids D. reducing inflammation by using a cortisol supplement E. All of these actions will boost the immune system
Climbing plants, such as vines, rely on touch to navigate and develop tendrils that coil around objects they encounter. Roots also rely on touch to navigate their way through the soil. When roots come into contact with an object, they generally grow in a direction away from the object. Based on this information, which of the following statements is true?
A. Both tendrils and roots are displaying thigmonastic responses to an object in the environment. B. The tendrils are displaying a thigmonastic response while the roots are displaying a thigmotropic response. C. The tendrils are displaying a positive thigmotropic response while the roots are displaying a negative thigmotropic response. D. The tendrils are displaying a thigmotropic response while the roots are displaying a thigmonastic response. E. The tendrils are displaying a negative thigmotropic response while the roots are displaying a positive thigmotropic response. Clarify Question · What is the key concept addressed by the question? · What type of thinking is required? · What key words does the question contain and what do they mean? Gather Content · What do you already know about plant responses to their environments? How does it relate to the question? Consider Possibilities · What other information is related to the question? Which information is most useful? Choose Answer · Given what you now know, what information and/or problem solving approach 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?
A plasmid cloning vector and DNA fragments containing the XYZ gene, each digested with the same restriction
enzyme, are mixed with DNA ligase. Which product(s) will result?
a. recombinant plasmids only b. nonrecombinant plasmids only c. joined-together copies of the DNA fragment containing the XYZ gene only d. a mixture of recombinant plasmids, nonrecombinant plasmids, and joined-together copies of the DNA fragment containing the XYZ gene e. no reaction will occur because DNA polymerase rather than DNA ligase is needed to insert the DNA fragments into the plasmid cloning vector