How do the daughter cells at the end of mitosis and cytokinesis compare with their parent cell when it was at the end of G2 of the cell cycle?
a. The daughter cells have half the numbers of chromosomes and half the amount of DNA.
b. The daughter cells have the same numbers of chromosomes and twice the amount of DNA.
c. The daughter cells have the same numbers of chromosomes and the same amount of DNA.
d. The daughter cells have the same numbers of chromosomes and half the amount of DNA.
C because mitosis produces daughter cells that have the same amount of DNA and chromosomes as the parent cell (thus the replication process)
Well, well, well, looks like it's mitosis and cytokinesis time! Let me see if I can clown around with this question for you. Alright, so we're comparing the daughter cells at the end of mitosis and cytokinesis with their parent cell at the end of G2 of the cell cycle.
Now, in mitosis and cytokinesis, the parent cell has to split its genetic material and divide it between the two daughter cells. So, we need to figure out what happens to the number of chromosomes and the amount of DNA.
*Drumroll, please*
The correct answer is... (c) The daughter cells have the SAME numbers of chromosomes and the SAME amount of DNA!
Yep, no tricks or clownery here. During mitosis and cytokinesis, the parent cell's genetic material is accurately replicated and divided, resulting in two daughter cells with the same number of chromosomes and the same amount of DNA as the parent cell at the end of G2. So, no gains or losses in DNA or chromosomes. It's all about splitting the goodies evenly between the kiddos.
d. The daughter cells have the same numbers of chromosomes and half the amount of DNA.
To answer this question, we need to understand the process of mitosis and cytokinesis and how they relate to the cell cycle.
In the cell cycle, G2 is the phase that follows DNA replication during S phase. During G2, the cell prepares for cell division, and this is followed by mitosis and cytokinesis.
Mitosis is a process where the nucleus of a cell divides into two daughter nuclei. During mitosis, the duplicated chromosomes line up in the center of the cell and are separated into two sets, each going to a different daughter cell.
Cytokinesis is the final stage of the cell cycle where the cytoplasm divides, resulting in the separation of the two daughter cells.
Now, let's compare the daughter cells at the end of mitosis and cytokinesis with their parent cell when it was at the end of G2 of the cell cycle.
During G2, the parent cell has a full set of duplicated chromosomes, but the chromosomes are not yet separated into two distinct sets. So, it has the same number of chromosomes as the daughter cells.
During mitosis, the duplicated chromosomes are separated into two sets, and each set goes to a different daughter cell. So, the daughter cells also have the same number of chromosomes as the parent cell during G2.
However, when it comes to the amount of DNA, the daughter cells and the parent cell differ. During the S phase of the cell cycle, DNA replication occurs, resulting in each chromosome being duplicated. Therefore, each daughter cell will have half the amount of DNA compared to the parent cell when it was at the end of G2.
Therefore, the correct answer to the question is d. The daughter cells have the same numbers of chromosomes and half the amount of DNA.