An organism in which foreign genes have been incorporated is called a:
a. recombinant organism.
b. transgene.
c. polymorphism
d. transgenic organism.
e. recombinant.
D
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Answer the following statements true (T) or false (F)
1.Calcitonin and parathyroid hormone have effects which generally oppose one another. 2.Neurotransmitters and hormones never share the same target cells. 3.The two hormones produced by the thyroid are thyroxine and triiodothyronine. 4.Exercise leads to weaker muscles due to the repeated strain, which damages the muscle. 5.The temporalis muscle is critical for chewing.
What has created at least half of the oxygen in Earth's atmosphere?
A) burning fossil fuels B) trees in the boreal forest C) phytoplankton in the ocean D) plants, algae, and phytoplankton in the intertidal zone
You are attempting to synthesize rRNA in a test tube using DNA isolated from mouse cells. In addition to the template DNA, ribonucleotides, and the necessary transcription factors, you should also add _________ to the test tube.
A. poly-A polymerase B. RNA polymerase III C. RNA polymerase II D. RNA polymerase I 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 RNA polymerases? Consider Possibilities · Consider the different answer options. Which can you rule out? 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?
Which of the following statements about coral bleaching is true?
A. All of the answer options are true. B. Bleached corals die more rapidly than unbleached corals. C. Coral bleaching results from the loss of algal symbionts from the coral tissue. D. Corals appear white after bleaching because their white calcium carbonate skeletons are visible through their translucent tissue. E. Increased seawater temperature is one cause of coral bleaching.