Which of the following correctly orders events during mitosis? a) Microtubules organize the chromosomes. The nuclear membrane dissolves. The mitotic spindle attaches to chromosomes. b) The nuclear membrane dissolves. Microtubules organize the chromosomes. The mitotic spindle attaches to chromosomes. c) The nuclear membrane dissolves. The mitotic spindle attaches to chromosomes. Microtubules organize the chromosomes?
b) The nuclear membrane dissolves. Microtubules organize the chromosomes. The mitotic spindle attaches to chromosomes.
The correct order of events during mitosis is as follows:
b) The nuclear membrane dissolves. Microtubules organize the chromosomes. The mitotic spindle attaches to chromosomes.
Therefore, option b) is the correct order of events.
To determine the correct order of events during mitosis, let's analyze the options provided:
a) Microtubules organize the chromosomes. The nuclear membrane dissolves. The mitotic spindle attaches to chromosomes.
b) The nuclear membrane dissolves. Microtubules organize the chromosomes. The mitotic spindle attaches to chromosomes.
c) The nuclear membrane dissolves. The mitotic spindle attaches to chromosomes. Microtubules organize the chromosomes.
During mitosis, the correct order of events is as follows:
1. The nuclear membrane dissolves: The nuclear envelope surrounding the nucleus breaks down, allowing access to the genetic material (chromosomes).
2. Microtubules organize the chromosomes: After the nuclear membrane dissolves, microtubules known as spindle fibers begin to form and extend from opposite ends of the cell. These microtubules attach to specific regions on the chromosomes, known as the kinetochores, helping to align and separate the chromosomes.
3. The mitotic spindle attaches to chromosomes: Once the chromosomes are organized, the mitotic spindle attaches to the kinetochores, located on the chromosomes' centromeres. This attachment allows the spindle fibers to exert forces that move and separate the chromosomes during cell division.
Based on the correct order of events during mitosis, the correct option is b) The nuclear membrane dissolves. Microtubules organize the chromosomes. The mitotic spindle attaches to chromosomes.