Bio 107 Name Date 10 Quiz 11: DNA and Blotechnology blood Sue John Lisa Bob Ques
ID: 260122 • Letter: B
Question
Bio 107 Name Date 10 Quiz 11: DNA and Blotechnology blood Sue John Lisa Bob Questions 1-8 are worth 1 point each. For question 1-3 below, use the diagram of a gel electrophoresis of DNA samples from several individuals (one sample per lane of the gel) shown to the right found at a crime scene. samples fromsevershown ane of the 1. Which individual could have been the person whose blood made the blood stain at the crime scene? a. Sue b. John c. Lisa d. Bob e. None of them 2. Why did you choose the individual from question #1? a. The DNA fingerprints matclh b. The individual had the same number of bands, but in different locations on the gel. c. Only the blood stain and the individual had RFLPs in their samples d. There was no match. 3. Restriction enzymes, found in cells, have an riginal function in the cell. However, molecular biologists have learned this function and now use it in many laboratory settings, including solving crimes involving murder. What is the original function of a restriction enzyme in a cell? a. To degrade RNA into nucleotides by breaking hydrogen bonds b. To begin the process of Transcription and Translation c. To restrict the invasion of foreign DNA by cutting it up into tiny pieces d. To lyse white blood cells 4. In what orientation can the enzyme DNA polymerase add a DNA monomer to an existing DNA molecule? a. Added to the 3' carbon b. Added to the 5'carbon c. Added to the nitrogenous base d. Added to the phosphate groupExplanation / Answer
1 = B John
2 = C only the blood stain and individual had RFLPs in their sample
3= C To restrict the invasion of foreign DNA by cutting it up into tiny pieces
4 = A added to the 3' Carbon
5 = A phosphate group
6 = C precipitate DNA
7 = A child 1
8 = B smaller ones
Smaller dna fragments will migrate faster due to the pore size of the gel, it retard the migration as if the size is large.
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