DNA is made up of many
a. nucleotides.
b. RNA molecules.
c. proteins.
d. amino acids
Answer: a. nucleotides.
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In the human disease known as lupus, there is an immune reaction against a patient's own DNA from broken or dying cells, which categorizes lupus as _____
A) an allergy B) an immunodeficiency C) an autoimmune disease D) an antigenic variation E) a cancer
In a recent TV documentary, the origins of several high profile personalities, like Oprah, were
examined and discussed. Oprah’s roots can be traced back to the west coast of Africa. How was this determined?
a. using DNA profiling. b. with genome analysis c. through therapeutic cloning d. via comparison of stem cells
What are the two main divisions of the cell cycle?
A. apoptosis and interphase B. mitosis and cytokinesis C. mitosis and meiosis D. nucleus and cytoplasm E. interphase and cell division
Cattle egrets follow African ungulates such as African buffalo around and catch insects that the buffalo flush out. Oxpeckers perch on the backs of buffalo and feed on ectoparasites that infest the buffalo. Which one of the following shows the ecological interaction that the buffalo has with each bird?
A. cattle egret: mutualism; oxpecker: commensalism B. cattle egret: commensalism; oxpecker: mutualism C. cattle egret: competition; oxpecker: mutualism D. cattle egret: mutualism; oxpecker: mutualism E. cattle egret: commensalism; oxpecker: commensalism 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 symbiotic relationships and the qualifications for each? 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? Reflection 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?