A mid body is formed during
A mid body is formed during
The correct option is B Animal cytokinesis
Cytokinesis is the final process in eukaryotic cell division, which divides the cytoplasm, organelles, and cellular membrane to give rise to daughter cells. In most animals, cytokinesis begins sometime in late anaphase or early telophase, to ensure the chromosomes have been completely segregated. The movements of cytokinesis seen in the cell are caused by the same spindle network that was responsible for the separation of the chromosomes.
In animal cells, after sister chromosomes have separated, the remaining non-kinetochore, overlapping microtubules form a structure called the spindle midzone. At this time, the actomyosin ring begins to assemble and contract. The remaining of the spindle midzone persists as a structure known as the residual body or midbody that has been compressed by the ingressing cleavage furrow. The midbody is a compact, dense matrix of proteins present in the region of microtubule overlap that is formed from the spindle midzone and cleavage furrow. It fills the intercellular channel connecting daughter cells at the completion of cytokinesis in animal cells and is a narrow structure with a typical diameter of 1 micrometer and a length of 3 to 5 micrometers. Hence, option A is correct.
Cytokinesis is the final process in eukaryotic cell division, which divides the cytoplasm, organelles, and cellular membrane to give rise to daughter cells. In most animals, cytokinesis begins sometime in late anaphase or early telophase, to ensure the chromosomes have been completely segregated. The movements of cytokinesis seen in the cell are caused by the same spindle network that was responsible for the separation of the chromosomes.
In animal cells, after sister chromosomes have separated, the remaining non-kinetochore, overlapping microtubules form a structure called the spindle midzone. At this time, the actomyosin ring begins to assemble and contract. The remaining of the spindle midzone persists as a structure known as the residual body or midbody that has been compressed by the ingressing cleavage furrow. The midbody is a compact, dense matrix of proteins present in the region of microtubule overlap that is formed from the spindle midzone and cleavage furrow. It fills the intercellular channel connecting daughter cells at the completion of cytokinesis in animal cells and is a narrow structure with a typical diameter of 1 micrometer and a length of 3 to 5 micrometers. Hence, option A is correct.
