The nucleus of a cell
A)is completely enclosed with no way in or out.
B)contains only the DNA.
C)is surrounded by a double membrane.
D)it contains large proteins that form chromosomes and are the genetic material for the cell.
E)has all of the above attributes.

Question

Quizplus · Accepted Answer

The nucleus of a cell is surrounded by a double membrane, known as the nuclear envelope, which separates it from the rest of the cell. This membrane is selectively permeable, meaning that it regulates what enters and exits the nucleus. Additionally, the nuclear envelope contains pores that allow for the movement of molecules in and out of the nucleus. Therefore, choice C is the best answer as it correctly describes the structure of the nucleus. Choices A and B are incorrect because the nucleus is not completely enclosed and contains more than just DNA. Choice D is partially correct, as chromosomes are made up of proteins and DNA, but it does not accurately describe the entire nucleus. Choice E is incorrect because it includes attributes that are not true, such as the nucleus being completely enclosed.

The Nucleus of a Cell