Domanda del libro di testo
What major events occur during anaphase of mitosis?
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Ch. 12 - The Cell Cycle
Freeman8th EditionBiological ScienceISBN: 9780138276263
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TOC.tableOfContents
- Ch. 1 - Biology: The Study of Life13
- Ch. 2 - Water and Carbon: The Chemical Basis of Life14
- Ch.3 - Protein Structure and Function10
- Ch.4 - Nucleic Acids and the RNA World10
- Ch. 5 - An Introduction to Carbohydrates10
- Ch. 6 - Lipids, Membranes, and the First Cells11
- Ch. 7 - Inside the Cell10
- Ch. 8 - Energy and Enzymes: An Introduction to Metabolism10
- Ch. 9 - Cellular Respiration and Fermentation11
- Ch. 10 - Photosynthesis12
- Ch. 11 - Cell-Cell Interactions12
- Ch. 12 - The Cell Cycle8
- Ch. 13 - Meiosis12
- Ch. 14 - Mendel and the Gene23
- Ch. 15 - DNA and the Gene: Synthesis and Repair15
- Ch. 16 - How Genes Work16
- Ch. 17 - Transcription, RNA Processing, and Translation16
- Ch. 18 - Control of Gene Expression in Bacteria16
- Ch. 19 - Control of Gene Expression in Eukaryotes12
- Ch. 20 - The Molecular Revolution: Biotechnology, Genomics, and New Frontiers15
- Ch. 21 - Genes, Development, and Evolution12
- Ch. 22 - Evolution by Natural Selection16
- Ch. 23 - Evolutionary Processes13
- Ch. 24 - Speciation15
- Ch. 25 - Phylogenies and the History of Life13
- Ch. 26 - Bacteria and Archaea15
- Ch. 27 - Diversification of Eukaryotes16
- Ch. 28 - Green Algae and Land Plants16
- Ch. 29 - Fungi18
- Ch. 30 - An Introduction to Animals9
- Ch. 31 - Protostome Animals15
- Ch. 32 - Deuterostome Animals17
- Ch. 33 - Viruses16
- Ch. 34 - Plant Form and Function16
- Ch. 35 - Water and Sugar Transport in Plants16
- Ch. 36 - Plant Nutrition13
- Ch. 37 - Plant Sensory Systems, Signals, and Responses16
- Ch. 38 - Flowering Plant Reproduction and Development16
- Ch. 39 - Animal Form and Function17
- Ch. 40 - Water and Electrolyte Balance in Animals16
- Ch. 41 - Animal Nutrition16
- Ch. 42 - Gas Exchange and Circulation16
- Ch. 43 - Animal Nervous Systems16
- Ch. 44 - Animal Sensory Systems16
- Ch. 45 - Animal Movement11
- Ch. 46 - Chemical Signals in Animals16
- Ch. 47 - Animal Reproduction and Development16
- Ch. 48 - The Immune System in Animals16
- Ch. 49 - An Introduction to Ecology15
- Ch. 50 - Behavioral Ecology16
- Ch. 51 - Population Ecology16
- Ch. 52 - Community Ecology20
- Ch. 53 - Ecosystems and Global Ecology17
- Ch. 54 - Biodiversity and Conservation Ecology18
Freeman8th EditionBiological ScienceISBN: 9780138276263Non è quello che usi tu?Cambia libro di testo
Capitolo 12, Problema 2
After S phase, what makes up a single chromosome?
a. Two daughter chromosomes
b. A double-stranded DNA molecule
c. Two single-stranded DNA molecules
d. Two sister chromatids
Guida verificata passo dopo passo1
Understand the context of the S phase in the cell cycle. The S phase, or synthesis phase, is the part of the cell cycle in which DNA replication occurs, resulting in the duplication of the cell's genetic material.
Recognize that after the S phase, each chromosome consists of two identical copies of DNA. These copies are known as sister chromatids.
Recall that a single chromosome before the S phase is made up of one double-stranded DNA molecule. After the S phase, this molecule is replicated, forming two identical double-stranded DNA molecules.
Identify that these two identical double-stranded DNA molecules are held together at a region called the centromere, forming what is known as sister chromatids.
Conclude that after the S phase, a single chromosome is composed of two sister chromatids, which are identical copies of the original chromosome.
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S Phase of the Cell Cycle
The S phase, or synthesis phase, is a part of the cell cycle where DNA replication occurs. During this phase, each chromosome is duplicated, resulting in two identical copies called sister chromatids. These chromatids are crucial for ensuring that each daughter cell receives an exact copy of the genetic material during cell division.
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Phases of The Krebs Cycle
Chromosome Structure
A chromosome is a long DNA molecule with part or all of the genetic material of an organism. After the S phase, each chromosome consists of two sister chromatids, which are identical copies of the original chromosome. These chromatids are joined together at a region called the centromere, forming the characteristic X-shape seen during cell division.
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08:09Homologous Chromosomes
Sister Chromatids
Sister chromatids are the two identical halves of a duplicated chromosome, formed during the S phase of the cell cycle. They are connected by a centromere and are eventually separated during mitosis or meiosis to ensure that each daughter cell receives an identical set of chromosomes. This duplication and separation are essential for genetic consistency across cell generations.
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03:55Eukaryotic Chromatin Modifications
Pratica correlata
Domanda del libro di testo
Progression through the cell cycle is regulated by oscillations in the concentration of which type of molecule?
a. p53, Rb, and other tumor suppressors
b. Receptor tyrosine kinases
c. Cyclins
d. Cyclin-dependent kinases
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Domanda del libro di testo
Identify at least two events in the cell cycle that must be completed successfully for daughter cells to share an identical complement of chromosomes.
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