LS23L 40 Final Exam Study Guide Correctly Answered
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A mixture of ddNTPs and dNTPs is used in Sanger Sequencing. Which of the following statement is correct?
Select one:
NTPs have a hydrogen in the 3' position instead of a hydroxyl group and thus stops DNA synthesis when added to a growing chain.
b.The use of dNTPs in a sequencing reaction will te...
LS23L 40 Final Exam Study Guide A mixture of ddNTPs and dNTPs is used in Sanger Sequencing. Which of the following statement is corre ct? Select one: a.ddNTPs have a hydrogen in the 3' position instead of a hydroxyl group and thus stops DNA synthesis when added to a growing chain. b.The use of dNTPs in a sequencing reaction will terminate the reaction before it goes to completion. c.ddNT Ps are easier and more efficient to use than just dNTPs. d.ddNTPs are optional - we would get the same result if we used dNTPs. e.dNTPs will stop DNA synthesis because they have a hydroxyl group in the 3' position. - ✔ ✔ a.ddNTPs have a hydrogen in the 3' position instead of a hydroxyl group and thus stops DNA synthesis when added to a growing chain. A researcher postulated: that tomato plants exhibit a higher rate of growth when planted in compost than in soil. Based on this hypothesis, which of the follow ing statements would be the best null hypothesis? a.Tomato plants that are planted in compost rather than in soil will grow to an average height of six feet. b.Tomato plants show no difference in growth rate when planted in compost rather than in soil. c.There is no difference in growth rates. d.A null hypothesis cannot be obtained from the hypothesis provided. e.Tomato plants exhibit a lower rate of growth when planted in compost than in soil. - ✔ ✔ b. Tomato plants show no difference in growth rate when planted in compost rather than in soil. A student attempts to analyze the cellular structure of a 1x1x1 centimeter cube of wood under a compound microscope. What must the student consider before proceeding? Select one: a.Since wood is opaque, even as a very thin slice, it cannot be viewed under a compound microscope, b.Light must be able to pass through the sample. c.The cube by itself, is small enough for its cells to be viewed under the compound microscope. d.A thin sl ide of the wood sample must be made about 2 mm thick e.Any image that appears through the ocular lenses is orientated correctly, not mirrored - ✔ ✔ b.Light must be able to pass through the sample. Below is a subset of class handshake data, similar to the d ata you worked with in the Working with Bacteria lab. Based on what you know about the bacterial transmission activity, what round was Keanu infected in? a.Round 1 b.Round 2 c.Round 3 d.Round 4 - ✔ ✔ c. Round 3 (it's just the first one that has a bacteria l colony) Below is a subset of class handshake data, similar to the data you worked with in the Working with Bacteria lab. Based on what you know about the bacterial transmission activity, which of the following statements is true based on the data below? a.Josephina and Enrique shook hands in Round 3 b.Kalifa and Juan shook hands in Round 1 c.Juan and Ekon shook hands in Round 2 d.Jafari and Enrique could not have shaken hands in Round 4 - ✔ ✔ b. Kalifa and Juan shook hands in Round 1 Below is a subset of class handshake data, similar to the data you worked with in the Working with Bacteria lab. Based on what you know about the bacterial transmission activity, which of the following statements is true based on the data below? a.Josephina and Enrique shook hands in Round 3
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