Question

A mixture containing DNA fragments a, b, c and d with molecular weights of a + b = c, a > b and d > c, was subjected to agarose gel electrophoresis. The positions of these fragments from cathode to anode sides of the gel would be (1) b, a, c, d (2) a, b, c, d (3) c, b, a, d (4) b, a, d, c

Answer 1

Ans is option
A (b, a, c, d)
If you like plz mark as brainliest

Answer 2

Answer:

D, C, A, B would be the right answer (not given in options though)

Explanation:

Shorter lengths of DNA move faster than longer lengths so move further in the time the current is run. So, since D has the heaviest weight (implying it has longest strand), it will tend to remain far from anode. B being lightest fragment, moves farthest from cathode.