queensisterseveryday
Answered

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PLEASE if i dont get this right imma fail :(


DNA samples from four different organisms were analyzed using a procedure that separates the DNA in each sample by size.
DNA fragments separated by size
DNA fragments separated by size
What does band X represent?
Choose 1 answer:
Choose 1 answer:

(Choice A)
A
Largest fragment of DNA that traveled the fastest

(Choice B)
B
Smallest fragment of DNA that traveled the slowest

(Choice C)
C
Smallest fragment of DNA that traveled the fastest

(Choice D)
D
Largest fragment of DNA that traveled the slowest

PLEASE If I Dont Get This Right Imma Fail DNA Samples From Four Different Organisms Were Analyzed Using A Procedure That Separates The DNA In Each Sample By Siz class=

Sagot :

Answer:

The answer is Choice C

Explanation:

Band X is at the bottom of the gel box or ladder so it is the smallest and the smallest fragments travel the fastest.

DrTobiasFunke

Answer:

C) Smallest fragment of DNA that traveled the fastest

Explanation:

During this gel electrophoresis, DNA passes through a agarose obstacle course, where the poles opposite to wells are positively charged electrodes. Since DNA is negative in charge, when it is placed in wells and electric current is run, DNA will try to run towards the positive end.

Shorter DNA segments can easily  "wiggle" through the pores of the gel whereas, longer DNA segments need to do more "squeezing" to move down the gel.

Therefore, Band X in this figure is the shorter DNA segment as it move through the lane at a faster rate and reaches very far when compared to longer DNA segments.

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