Question

At the end of interphase, parent cells have a nucleus and two centrioles. Inside the nuclear membrane are DNA chromosomes. At this point, mitosis can begin. Mitosis has four phases: prophase, metaphase, anaphase and telophase. Prophase comes first. DNA chromosomes begin to condense as the cell’s nuclear membrane starts to disappear. At the same time, the centrioles start moving to opposite sides of the cell. Thread-like spindle fibers extend from each centriole and get longer. Phase two is metaphase. With the nuclear membrane gone, X-shaped chromosomes line up along the center of the cell. Spindle fibers extend from the centrioles on either side of the cell to connect to each chromosome’s centromere.

Which of the following best describes the relationship between a cell’s nuclear membrane and chromosomes during prophase and metaphase?
A
Once the nuclear membrane completely disappears, chromosomes are able to line up along the center of the cell.
B
The nuclear membrane carries chromosomes from their original position to the center of the cell as metaphase occurs.
C
As chromosomes disappear, the nuclear membrane recreates new chromosomes that line up along the center of the cell.
D
The nuclear membrane splits and moves to either side as spindle fibers extend to connect to chromosomes along the center of the cell.

Answer 1

The answer is Once the nuclear membrane completely disappears, chromosomes are able to line up along the center of the cell.

Step-by-step explanation:

according to the passage, “With the nuclear membrane gone, X-shaped chromosomes line up along the center of the cell.”