How many chromatids per diploid nucleus (in a diploid somatic cell) will there be after Telophase of mitosis in C. elegans male cells?
To determine the number of chromatids per diploid nucleus after Telophase of mitosis in C. elegans male cells, we need to understand the process of mitosis and the characteristics of these cells.
Mitosis is a process of cell division in which a single cell divides into two identical daughter cells. It consists of several stages: Prophase, Prometaphase, Metaphase, Anaphase, and Telophase.
During Prophase, the DNA in the cell's nucleus condenses into visible chromosomes, with each chromosome consisting of two sister chromatids. Sister chromatids are exact copies of each other and are held together at a region called the centromere.
In Prometaphase, the nuclear envelope breaks down, and the mitotic spindle, composed of microtubules, attaches to the centromeres of each chromosome.
In Metaphase, the chromosomes align along the cell's equator, known as the metaphase plate.
In Anaphase, the sister chromatids separate and are pulled towards opposite poles of the cell.
Finally, in Telophase, the two sets of chromosomes reach the opposite poles of the cell, and nuclear envelopes begin to form around them, resulting in two separate nuclei.
Now, we can determine the number of chromatids per diploid nucleus after Telophase.
In C. elegans male cells, like most somatic cells, are diploid, meaning they contain two sets of chromosomes. Therefore, each diploid nucleus would have two sets of chromosomes.
During Anaphase of mitosis, sister chromatids separate and move to opposite poles of the cell. As a result, chromatids are segregated, and each daughter cell receives an equal number of chromatids.
Hence, in Telophase, when the nuclear envelopes form around the chromosomes, each diploid nucleus would contain one copy of each chromosome, which means there would be two chromatids per diploid nucleus.
Therefore, after Telophase of mitosis in C. elegans male cells, there would be two chromatids per diploid nucleus.