Question

Interzonal fibers occur in?Interzonal fibers occur in?

Answer 1

Hint: The zone between two sets of chromosomes or an equatorial region gradually increases during mitotic cell division.

Complete step-by-step solution:
To answer this question, we have to first know about the mitotic division. The mitotic cell division is a process of nuclear division, in this process the parent cell divides to produce identical daughter cells, therefore, in this division process the chromosomes are divided equally that also leads to the equal distribution of the DNA. There are four phases of mitotic cell division; prophase, metaphase, anaphase, and telophase.
Let’s find out the division process in these phases; in prophase the condensation of chromosomes takes place the nucleus moves to two opposite poles and the nucleus begins to disappear. In metaphase the chromosomes become more condensed and the spindle fibers begin to form and organize the chromosome in the line or in other words, arrange the chromosome in the equator. In anaphase the sister chromatids get divided from each other and move to the opposite ends, and in the final stage that is in the telophase the mitotic spindle gets broken, two nuclei are formed along with the nuclear membrane, and the cell gets divided into two. Movement of chromosomes is controlled by spindle fibers, which stretch and form interzonal fibers.

Note:A band of interzonal fibers is often seen for a time after separation, connecting chromosomes which have been pulled apart and often include a remnant of spindle.