An electron micrograph of chromatin,which looks like a bead on a string,allows measurement of structural dimensions.The beads appear to have a diameter of about ________ Å and the string has a diameter of about ________ Å.
A) 20;100
B) 20;0.1
C) 100;20
D) 120;100
E) 0.1;10

Question

Quizplus · Accepted Answer

According to the question, the beads have a diameter of about 100 Å and the string has a diameter of about 20 Å. The only option that fits with these measurements is option C.

An Electron Micrograph of Chromatin,which Looks Like a Bead on a String,allows