A chemical is reported to inhibit bacterial replication. Bacterial cells are placed in medium with all nutrients necessary for replication. The chemical is added to the culture, and after a half hour an extract of the DNA is prepared. A significant percentage of the DNA is in pieces about 1000 to 2000 bases in length. The results are consistent with the chemical blocking the function of DNA ligase.
Answer the following statement true (T) or false (F)
True
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Which of the following is unique to prokaryotes?
a. UTRs in mRNA b. introns c. polysomes connected to DNA d. use of aminoacyl-tRNA synthetases e. translocation during translation
How many carbon dioxide molecules does it take to synthesize one molecule of glucose?
a. 2 b. 4 c. 6 d. 12 e. 18
Which of the following genes would most likely play a role in promoting kin selection?
A. wingless -- critical for the formation of wings in fruit flies B. SRY -- the gene that initiates male sex determination C. Major Histocompatibility Complex (MHC) genes -- allow mammals to recognize related individuals D. the genes important for the development of large antlers in the caribou 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 the genetic basis of kin selection? 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?
What are the three strategies for defending against foreign organisms, cells, or molecules?
What will be an ideal response?