Question

Late prophase of mitosis is characterized by.
A. Condensation of chromosomes.
B. Disappearance of the nucleolus.
C. Division of the centromere.
D. Formation of the metaphase plate.

Answer 1

Hint:Cell division is the process by which a parent cell divides into two or more daughter cells. Cell division usually occurs as part of a larger cell cycle. Mitosis takes place in four stages: prophase (sometimes divided into early prophase and prometaphase), metaphase, anaphase, and telophase. In cytokinesis, the cytoplasm of the cell is split in two, making two new cells.

Complete answer: In late prophase (some of the time additionally called prometaphase), the mitotic axle starts to catch and put together the chromosomes. The atomic envelope separates, delivering the chromosomes. The mitotic shaft develops more, and a portion of the microtubules begin to "catch" chromosomes.
The chromosomes become considerably more consolidated, so they are conservative.
The atomic envelope separates, delivering the chromosomes.
The mitotic shaft develops more, and a portion of the microtubules begin to "catch" chromosomes.
Life structures of the mitotic shaft. Graph demonstrating kinetochore microtubules (bound to kinetochores) and the aster. The aster is a variety of microtubules that transmits out from the centrosome towards the cell edge. The outline additionally shows the centromere area of a chromosome, the limited "midsection" where the two sister chromatids are most firmly associated, and the kinetochore, a stack of proteins found at the centromere.
Life structures of the mitotic shaft. Graph demonstrating kinetochore microtubules (bound to kinetochores) and the aster. The aster is a variety of microtubules that transmits out from the centrosome towards the cell edge. The outline additionally shows the centromere area of a chromosome, the limited "midsection" where the two sister chromatids are most firmly associated, and the kinetochore, a stack of proteins found at the centromere.
Microtubules can tie to chromosomes at the kinetochore, a fix of protein found on the centromere of every sister chromatid. (Centromeres are the locales of DNA where the sister chromatids are most firmly associated).
The right option is "B", i.e., The disappearance of the nucleolus.

Note: Disappearance of nucleolus usually occurs at prophase and this step occurs at ending of the prophase. Prophase marks the separation of the duplicated genetic material carried by the nucleus and condensation of the chromatins occurs. Early prophase - the nuclear membrane becomes more and more indistinct and the chromatin fibers become more and more packaged and condensed. late prophase - the nuclear membrane and the nucleolus finally vanish completely.