Question

Соматична диплоїдна клітина людини вступила в мітоз, але внаслідок дії на клітину токсичного препарату, що вплинув на тубуліни веретена поділу, останне було зруйноване. Скільки ядер утвориться в цій клітині? Який хромосомний набір матиме ця клітина?

Answer 1

Так як веретено поділу зруйноване – буде 1 ядро. Хромосомний набір – 2n4c- 46 хр, 92 молекул ДНК

Answer 2

The Effect of a Toxic Substance on Mitosis in a Somatic Diploid Human Cell

When a somatic diploid human cell enters mitosis but is exposed to a toxic substance that affects the spindle fibers, the spindle apparatus responsible for separating chromosomes during cell division can be disrupted. This disruption can lead to abnormal cell division and the formation of cells with an altered number of nuclei.

To determine the number of nuclei that will form in this specific scenario, we need to consider the stages of mitosis and the impact of the toxic substance on the spindle fibers.

During mitosis, a diploid cell undergoes several stages: prophase, prometaphase, metaphase, anaphase, and telophase. In normal mitosis, the spindle fibers attach to the chromosomes and separate them into two sets, resulting in two daughter cells with the same number of nuclei as the parent cell.

However, in this case, the toxic substance has disrupted the spindle fibers, leading to their destruction. As a result, the chromosomes cannot properly align and separate during metaphase and anaphase. This disruption can lead to abnormal cell division and the formation of cells with an altered number of nuclei.

The exact outcome will depend on the specific nature and extent of the disruption caused by the toxic substance. It is possible that the disrupted spindle fibers may still manage to separate the chromosomes partially or unevenly, resulting in cells with an abnormal number of nuclei.

To determine the number of nuclei that will form in this specific scenario, further information about the extent of the disruption caused by the toxic substance is needed. Without this information, it is not possible to provide a definitive answer.

Regarding the chromosomal set of the resulting cell, it is important to note that somatic cells in humans are typically diploid, meaning they contain two sets of chromosomes (one set inherited from each parent). Therefore, even if the cell undergoes abnormal division and forms cells with an altered number of nuclei, each nucleus will likely still contain the diploid set of chromosomes.

In summary, the exact number of nuclei that will form in the somatic diploid human cell and the chromosomal set of the resulting cell cannot be determined without further information about the extent of the disruption caused by the toxic substance. However, it is likely that the resulting cell(s) will still have a diploid chromosomal set.