What is the result of normal chromosome replication? … Two identical sets of chromosomes are produced.
What is the result of mitosis quizlet?
The primary result of mitosis is the transferring of the parent cell’s genome into two daughter cells. These two cells are identical and do not differ in any way from the original parent cell.
What are some of the events associated with normal cell division?
The list below describes some of the events associated with normal cell division.
- Nuclear membrane formation around each set of newly formed chromosomes.
- Centrioles move to poles and nuclear envelope disappears.
- Replication of each chromosome.
- Movement of single stranded chromosomes to opposite ends of the spindle.
How many chromosomes does each offspring cell contain as compared to the parent cell?
Mitosis creates two identical daughter cells that each contain the same number of chromosomes as their parent cell. In contrast, meiosis gives rise to four unique daughter cells, each of which has half the number of chromosomes as the parent cell.
What phase of the cell cycle would the student investigate to see and count chromosomes?
Chromosomes exist at all different phases of the cell cycle. They condense and become visible to light microscopy in prophase of mitosis or meiosis, and they decondense during interphase, in the form of chromatin (DNA wrapped around nucleosomes, like “beads on a string”).
What is the normal outcome of mitosis?
What is the outcome of one mitotic division? Mitosis results in the production of two genetically identical diploid cells. 2 identical daughter cells identical to the parent cell.
What is the main result of mitosis?
Mitosis results in two identical daughter cells, whereas meiosis results in four sex cells.
What is a normal cell division?
Cell division is a normal process. Mechanisms exist to ensure DNA replication occurs correctly and the environmental conditions are favorable for cell division. Replication errors may also be corrected after they occur. Normal cells stop dividing when there is genetic damage or conditions are not favorable.
What do you suppose would happen to a cell in which checkpoints were faulty?
If the checkpoint mechanisms detect problems with the DNA, the cell cycle is halted, and the cell attempts to either complete DNA replication or repair the damaged DNA. If the damage is irreparable, the cell may undergo apoptosis, or programmed cell death 2.
What are the 3 main events of the cell cycle?
The cell cycle is composed of interphase (G₁, S, and G₂ phases), followed by the mitotic phase (mitosis and cytokinesis), and G₀ phase.
How do humans maintain the normal number of chromosomes across generations?
When mitosis is not regulated correctly, health problems such as cancer can result. The other type of cell division, meiosis, ensures that humans have the same number of chromosomes in each generation. It is a two-step process that reduces the chromosome number by half—from 46 to 23—to form sperm and egg cells.
Which process results in a cell containing the same DNA as its parent cell?
Mitosis is common to all eukaryotes; during this process, a parent cell splits into two genetically identical daughter cells, each of which contains the same number of chromosomes as the parent cell. Meiosis, on the other hand, only occurs in eukaryotic organisms that reproduce sexually.
How many replicated chromosomes are in the original cell shown in model 1 during prophase hint when counting chromosomes count 1 for a pair of sister chromatids?
Hint: When counting chromosomes, count “1” for a pair of sister chromacids. Four replicated chromosomes are in the original cell. 7. How many single chromosomes are in each of the new cells in telophase?
What are the changes that occur in chromosomes during the cell cycle?
Figure 1: Chromatin condensation changes during the cell cycle. During interphase (1), chromatin is in its least condensed state and appears loosely distributed throughout the nucleus. Chromatin condensation begins during prophase (2) and chromosomes become visible.
What happens in each cell cycle phase?
The cell cycle has two major phases: interphase and the mitotic phase (Figure 1). During interphase, the cell grows and DNA is replicated. During the mitotic phase, the replicated DNA and cytoplasmic contents are separated, and the cell divides. … During interphase, the cell grows and the nuclear DNA is duplicated.
What happens in the cell cycle?
cell cycle, the ordered sequence of events that occur in a cell in preparation for cell division. The cell cycle is a four-stage process in which the cell increases in size (gap 1, or G1, stage), copies its DNA (synthesis, or S, stage), prepares to divide (gap 2, or G2, stage), and divides (mitosis, or M, stage).