Textbook Question
In the cells of some organisms, mitosis occurs without cytokinesis. This will result in
a. Cells with more than one nucleus
b. Cells that are unusually small
c. Cells lacking nuclei
d. Cell cycles lacking an S phase
2081
views
11. Cell Division
Cell Cycle Regulation
Struggling with General Biology?
Join thousands of students who trust us to help them ace their exams!Watch the first videoMultiple Choice
What is the primary purpose of a checkpoint in the cell cycle?
A
To determine the cell's size and shape
B
To initiate the process of cytokinesis
C
To verify that the cell's DNA is undamaged and properly replicated
D
To ensure that the cell has sufficient nutrients before division
Verified step by step guidance1
Understand the cell cycle: The cell cycle is a series of phases that cells go through to grow and divide. It includes interphase (G1, S, G2) and mitotic phase (M phase).
Identify the role of checkpoints: Checkpoints are control mechanisms in the cell cycle that ensure the cell is ready to proceed to the next phase. They help prevent errors during cell division.
Focus on DNA integrity: One of the primary purposes of checkpoints is to verify that the cell's DNA is undamaged and properly replicated before the cell proceeds to mitosis.
Consider nutrient availability: Checkpoints also ensure that the cell has sufficient nutrients and energy reserves to support cell division.
Recognize the importance of checkpoints: By preventing the division of cells with damaged DNA, checkpoints help maintain genetic stability and prevent diseases such as cancer.
Related Videos
Related Practice
Cell Cycle Regulation practice set
Problem sets built by lead tutorsExpert video explanations