Cells that are actively dividing go through a series of stages called the __________ ______________. The cycle involves the _________________ of the cell and the production of new... Cells that are actively dividing go through a series of stages called the __________ ______________. The cycle involves the _________________ of the cell and the production of new cell components and division. During which phase(s) of the cell cycle do: a. DNA replication occur b. Chromosomes move apart and two new nuclei form c. DNA get checked for replication errors (mutations) d. Mitochondria and ribosome number increase. Using the figure, calculate the proportion of the cell cycle spent in mitosis. If the cell cycle lasts 24 hours, estimate the time spent in mitosis.
Understand the Problem
The question is related to the process of mitosis and the cell cycle. It is asking to fill in blanks about key concepts in cellular division and to analyze the proportion of the cell cycle spent in mitosis. This includes understanding various stages and functions involved in cell division.
Answer
1. cell cycle; growth; 2.a. S phase; b. M phase; c. G2 phase; d. G1 phase. 3.a. 1/6th; b. 4 hours.
The final answer is: 1. cell cycle; growth; 2.a. S phase; b. M phase (Anaphase & Telophase); c. G2 phase; d. G1 phase. 3.a. Approximately 1/6th of the cycle; b. About 4 hours in mitosis.
Answer for screen readers
The final answer is: 1. cell cycle; growth; 2.a. S phase; b. M phase (Anaphase & Telophase); c. G2 phase; d. G1 phase. 3.a. Approximately 1/6th of the cycle; b. About 4 hours in mitosis.
More Information
The cell cycle comprises four key stages: G1 (cell growth), S (DNA replication), G2 (preparation for mitosis, error checking), and M (mitosis, where cell division occurs). The time spent in each phase can vary with cell type.
Tips
A common mistake is confusing the functions of the G1 and G2 phases. Remember G1 is for growth and preparation, while G2 is for checking and final preparations before mitosis.
Sources
- Phases of the cell cycle (article) | Khan Academy - khanacademy.org
- 6.2 The Cell Cycle – Concepts of Biology – 1st Canadian Edition - opentextbc.ca
- The Eukaryotic Cell Cycle - The Cell - NCBI Bookshelf - ncbi.nlm.nih.gov
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