1 answer

A1 is my DNA, Enzyme 1 BsrB1 P1 is known pBR322 enzyme 1 A2 is my...

Question:

A1 is my DNA, Enzyme 1 BsrB1
P1 is known pBR322 enzyme 1
A2 is my dna enzyme 2 RSa1
p2 is known pBR322 enzyme 2
Au is my dna uncut
Pu is know pBR322 uncut
ladder Pu Au P, A, P2 Az HAAAM .. - וור
RESULTS: Analyzing your data Tobbul Avdinol Answer the following questions: 1) How many bands do you see in the uncut lanes
Clone Sizer DNA Ladder 2686 2000 1500 1200 וווווווווון saa888 400 300 200 100dboonstored bobo
ladder Pu Au P, A, P2 Az HAAAM .. - וור
RESULTS: Analyzing your data Tobbul Avdinol Answer the following questions: 1) How many bands do you see in the "uncut" lanes? If there are more than one band can you explain the nature or origin of the other bands? 2) Why did you have to clectrophorese uncut DNA? 3) What size of fragments were you expecting when you digested the known samples of PBR322 with the enzymes you used? 4) What are the sizes of the bands that you actually see? 5) Are there any other anomalous bands in these lanes? If so, can you explain how these may have arisen? 6) Does the plasmid you isolated correspond to pBR322? Use the photograph of your results to argue one way or the other. This is the central question, which should help support or negate our original hypothesis
Clone Sizer DNA Ladder 2686 2000 1500 1200 וווווווווון saa888 400 300 200 100dboonstored bobo

Answers

1) In the uncut lane, Au has 3 bands (one being the intense) and PU has 2 bands (one being the intense). If there are more than one band, one possibility is- it is a plasmid DNA. Plasmid dna runs with multiple bands- nicked, linear and supercoilled.

2) The uncut DNA is electrophoresed because it serves as a control when you run a cut DNA with enzyme on a gel

3) When the know sample of pBR322 was cut with enzyme 1 it showed multiple cuts- 3, 2 and 1.3 Kb while when it was cut with enzyme 2, it did not show any cut.

4) The sizes of the band I can actually see when pBR322 is cut with enzyme 1- 3, 2.6, 2 amd 1.3 Kb

5) The anamolous band might be 3 and 2.6 Kb fragment which has arisen from uncut plasmid.

6) Yes the plasmid which is isolated is pBR322 because the unknown DNA shows same band pattern when cut with enzyme 1 and 2 except the 3 and 2.6 Kb band which might be a result of uncut or partially cut.

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