Question

in ecoli 1.36 mm of dna, 4.6 *10 ^6 base pairs are present. how many nucleosomes can be seen to pack dna​

Answer 1

Answer:

The distance between two consecutive base pairs in a double helix DNA is 0.34 X 10

−

9m.

The total length of double helix DNA in an organism can be calculated by multiplying the total number of base pairs with distance between two consecutive base pairs

Total length of double helix DNA = total number of base pairs X distance between two consecutive bp

1.36mm = x X 0.34 X 10

−

9m

by solving this we get, x = 4 X 10

6

bp

So the number o base pairs in a DNA of E.Coli o 1.36mn is 4 X10

6

bp

I hope tht helps you out

Answer 2

Answer:

ecoli has 4.6*106 bps

nucleosome has 200 bps

here 1 nucleosome = 200bp

x nucleosome= 4.6*106 bps

x =4.6*106 bps/200 = 2.3 * 104