LABORATORY REVIEW
MITOSIS AND MEIOSIS
|
Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
|
|
|
Interphase-if a cell does not complete interphase, organelle & DNA will not be duplicated, cell will divide with only half of the organelle and DNA it needs.
|
|
|
Mitosis-if a cell does not complete mitosis, a cell will divide with genetic material (chromosomes) scattered everywhere. Each cell would not have the amount of genetic material and organelle it needed in order to survive.
|
|
|
Cytokinesis-If a cell did not complete cytokinesis, the resulting cell would be very large, with many nuclei, organelle, and chromosomes
|
|
|
All of the above
|
Detailed explanation-1: -Disruption of normal regulation of the cell cycle can lead to diseases such as cancer. When the cell cycle proceeds without control, cells can divide without order and accumulate genetic errors that can lead to a cancerous tumor .
Detailed explanation-2: -Cancers, however, occur due to an alteration of a normal biological process-cell division. Cells that progress through the cell cycle unchecked may eventually form malignant tumors, where masses of cells grow and divide uncontrollably, then develop the ability to spread and migrate throughout the body.
Detailed explanation-3: -Mutations in genes can cause cancer by accelerating cell division rates or inhibiting normal controls on the system, such as cell cycle arrest or programmed cell death. As a mass of cancerous cells grows, it can develop into a tumor.
Detailed explanation-4: -Mutations commonly found in cancer cells are shown in red: they affect mainly cell cycle control in response to DNA damage and growth signals in pre-S phase. These mutations drive S phase entry and prevent cell cycle exit.