Why is it important to have an antibiotic resistance gene in plasmid cloning vectors?
a. It helps the host bacteria grow faster.
b. It allows researchers to distinguish bacteria that contain the plasmid from those that do not.
c. It aids scientists in developing new antibiotic treatments.
d. It allows researchers to distinguish bacteria that contain the recombinant vector from those that contain just the
vector.
e. It helps the bacteria replicate the recombinant plasmid more quickly.
ANSWER: b
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Phil has chronic ulcers, he has been taking acid blockers and drinking vast amounts of liquid antacids. These help relieve the symptoms but he still suffers from ulcers. What would be the best course of action to treat the source of his ulcers?
A. Taking several different antacids. B. Increasing the dosage of acid blockers. C. Taking a course of antibiotics. D. Reducing the stress in his daily life. E. Changing his diet to include more fiber. Clarify Question · What is the key concept addressed by the question? · What type of thinking is required? Gather Content · What do you already know about ulcers? How does it relate to the question? · 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?
What is the purpose of mitosis in living organisms?
What will be an ideal response?
For six molecules of carbon dioxide fixed in the light-independent reaction, how many molecules of PGA
are produced?
a. 2 b. 4 c. 6 d. 12 e. 18
Genetic variation associated with meiosis is manifested as
a. new combinations of alleles due to crossing over. b. random movement of homologous pairs of chromosomes moving to spindle poles. c. random chance playing a role when a sperm fertilizes an egg. d. diploid cells expressing various traits. e. a, b, and c.