Textbook Question
Describe three ways that cancer cells differ from normal cells.
Ch. 6 - Cancer
Belk, Maier6th EditionBiology: Science for LifeISBN: 9780135214084
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Table of contents
- Ch. 1 - Can Science Cure the Common Cold?12
- Ch. 2 - Science Fiction, Bad Science, and Pseudoscience12
- Ch. 3 - Is It Possible to Supplement Your Way to Better Performance and Health?10
- Ch. 4 - Body Weight and Health10
- Ch. 5 - Life in the Greenhouse10
- Ch. 6 - Cancer10
- Ch. 7 - Fertility10
- Ch. 8 - Does Testing Save Lives?10
- Ch. 9 - Biology of Wrongful Convictions10
- Ch. 10 - Genetically Modified Organisms10
- Ch. 11 - Where Did We Come From?13
- Ch. 12 - An Evolving Enemy8
- Ch. 13 - Understanding Race11
- Ch. 14 - The Greatest Species on Earth?8
- Ch. 15 - Is the Human Population Too Large?10
- Ch. 16 - Conserving Biodiversity12
- Ch. 17 - The Human Footprint10
Belk, Maier6th EditionBiology: Science for LifeISBN: 9780135214084Not the one you use?Change textbook
Chapter 6, Problem 3
A cell that begins mitosis with 46 chromosomes produces daughter cells with ________ chromosomes.
a. 13
b. 23
c. 46
d. 92
Verified step by step guidance1
Understand the process of mitosis: Mitosis is a type of cell division that results in two daughter cells, each with the same number of chromosomes as the parent cell. It is essential for growth, repair, and asexual reproduction in multicellular organisms.
Recall the chromosome number in human cells: Human somatic (body) cells are diploid, meaning they contain two sets of chromosomes (one from each parent). This totals 46 chromosomes in a typical human cell.
Analyze what happens during mitosis: During mitosis, the parent cell duplicates its chromosomes during the S phase of the cell cycle, resulting in 92 chromatids. However, these chromatids are divided equally between the two daughter cells during the mitotic phase.
Determine the chromosome number in daughter cells: After mitosis, each daughter cell receives one complete set of chromosomes, which is identical to the parent cell. Therefore, each daughter cell will have 46 chromosomes.
Match the correct answer to the options provided: Based on the explanation, the correct answer is c. 46 chromosomes.
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Key Concepts
Here are the essential concepts you must grasp in order to answer the question correctly.
Mitosis
Mitosis is a type of cell division that results in two genetically identical daughter cells, each with the same number of chromosomes as the original cell. In humans, somatic cells undergo mitosis to maintain the diploid number of chromosomes, which is 46. This process is crucial for growth, repair, and asexual reproduction.
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03:21
Phases of Mitosis
Chromosome Number
Chromosomes are structures within cells that contain DNA and genetic information. In humans, normal somatic cells have 46 chromosomes, arranged in 23 pairs. During mitosis, the chromosome number remains constant, ensuring that each daughter cell receives the same diploid number of chromosomes as the parent cell.
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Daughter Cells
Daughter cells are the two new cells that result from the division of a parent cell during mitosis. Each daughter cell inherits an identical set of chromosomes, maintaining the original chromosome number. In the case of a cell starting with 46 chromosomes, each daughter cell will also have 46 chromosomes after mitosis.
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Related Practice
Textbook Question
Add labels to the figure that follows, which illustrates duplicated chromosomes.
1
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Textbook Question
The centromere is a region at which ________.
a. Sister chromatids are attached to each other.
b. Metaphase chromosomes align.
c. The tips of chromosomes are found.
d. The nucleus is located.
Textbook Question
Mitosis ________.
a. Occurs only in cancerous cells.
b. Occurs only in skin cells.
c. Produces daughter cells that are exact genetic copies of the parent cell.
d. Results in the production of three different cells.
Textbook Question
At metaphase of mitosis, ________.
a. The chromosomes are condensed and found at the poles.
b. The chromosomes are composed of one sister chromatid.
c. Cytokinesis begins.
d. The chromosomes are composed of two sister chromatids and are lined up along the equator of the cell.