Question

Assertion (A): A true nucleus is absent in E. coli and other prokaryotes.

Reason (R): An undifferentiated, unorganised fibrillar chromosome existsinside the prokaryotic cells.

Codes:

(a) Both A and R are true and R is the correct explanation of A.

(b) Both A and R are true, but R is not the correct explanation of A.

(c) A is false, but R is true.

(d) Both A and R are false.

Answer 1

(a) Both A and R are true and R is the correct explanation of A.

In the prokaryotes, all the genetic materials lie inside the cell, no clear or separate nuclear wall is recognized in these cells. In fact, no membrane-bound organelles are found in the prokaryotes. While on the other hand, one of the characteristic features of the eukaryotic cells is the presence of membrane-bound organelles. Clear and distinguished nuclear membrane bounds the genetic material inside.