Domanda del libro di testo
Our closest primate relative, the chimpanzee, has a diploid number of 2n = 48. For each of the following stages of M phase, identify the number of chromosomes present in each cell.
End of mitotic telophase
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Ch. 3 - Cell Division and Chromosome Heredity
Sanders3rd EditionGenetic Analysis: An Integrated ApproachISBN: 9780135564172
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TOC.tableOfContents
- Ch. 1 - The Molecular Basis of Heredity, Variation, and Evolution64
- Ch. 2 - Transmission Genetics144
- Ch. 3 - Cell Division and Chromosome Heredity81
- Ch. 4 - Gene Interaction87
- Ch. 5 - Genetic Linkage and Mapping in Eukaryotes103
- Ch. 6 - Genetic Analysis and Mapping in Bacteria and Bacteriophages73
- Ch. 7 - DNA Structure and Replication71
- Ch. 8 - Molecular Biology of Transcription and RNA Processing79
- Ch. 9 - The Molecular Biology of Translation110
- Ch. 10 - Eukaryotic Chromosome Abnormalities and Molecular Organization100
- Ch. 11 - Gene Mutation, DNA Repair, and Homologous Recombination86
- Ch. 12 - Regulation of Gene Expression in Bacteria and Bacteriophage90
- Ch. 13 - Regulation of Gene Expression in Eukaryotes38
- Ch. 14 - Analysis of Gene Function via Forward Genetics and Reverse Genetics72
- Ch. 15 - Recombinant DNA Technology and Its Applications69
- Ch. 16 - Genomics: Genetics from a Whole-Genome Perspective49
- Ch. 17 - Organelle Inheritance and the Evolution of Organelle Genomes27
- Ch. 18 - Developmental Genetics43
- Ch. 19 - Genetic Analysis of Quantitative Traits66
- Ch. 20 - Population Genetics and Evolution at the Population, Species, and Molecular Levels105
Sanders3rd EditionGenetic Analysis: An Integrated ApproachISBN: 9780135564172Non è quello che usi tu?Cambia libro di testo
Capitolo 3, Problema 1
Examine the following diagrams of cells from an organism with diploid number 2n=6, and identify what stage of M phase is represented.
Guida verificata passo dopo passo1
Step 1: Understand the diploid number 2n=6 means the organism has 6 chromosomes arranged in 3 homologous pairs. Each chromosome consists of two sister chromatids during M phase.
Step 2: Identify the key features of each stage of mitosis: (a) chromosomes aligned at the metaphase plate (metaphase), (b) chromosomes condensed but not yet aligned (prometaphase), (c) two daughter cells forming with separated chromosomes (telophase/cytokinesis), (d) chromosomes being pulled apart toward opposite poles (anaphase).
Step 3: Analyze image (a): chromosomes are aligned in the center of the cell, attached to spindle fibers from opposite poles, indicating metaphase.
Step 4: Analyze image (b): chromosomes are condensed and spindle fibers are attached, but chromosomes are not yet aligned at the center, indicating prometaphase.
Step 5: Analyze image (c): two cells are forming with nuclei reappearing, indicating telophase and cytokinesis, and image (d): sister chromatids are being pulled apart toward opposite poles, indicating anaphase.
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Stages of Mitosis
Mitosis is the process of nuclear division in eukaryotic cells, consisting of prophase, metaphase, anaphase, and telophase. Each stage is characterized by specific chromosome arrangements and spindle fiber behaviors, which are critical for accurate chromosome segregation.
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09:46
Mitosis Steps
Chromosome Behavior During Mitosis
During mitosis, chromosomes condense and become visible. In metaphase, chromosomes align at the cell's equatorial plate; in anaphase, sister chromatids separate and move to opposite poles; in telophase, chromatids arrive at poles and begin to decondense, signaling the end of nuclear division.
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Percorso guidato
09:46Mitosis Steps
Role of Spindle Fibers and Centrosomes
Spindle fibers, originating from centrosomes (microtubule organizing centers), attach to chromosomes at kinetochores and facilitate their movement. The organization and dynamics of spindle fibers are essential for proper chromosome alignment and segregation during mitosis.
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07:10Chromosome Structure
Pratica correlata
Domanda del libro di testo
Our closest primate relative, the chimpanzee, has a diploid number of 2n = 48. For each of the following stages of M phase, identify the number of chromosomes present in each cell.
End of meiotic anaphase II
697
views
Domanda del libro di testo
Our closest primate relative, the chimpanzee, has a diploid number of 2n = 48. For each of the following stages of M phase, identify the number of chromosomes present in each cell.
Meiotic metaphase I
670
views