Biology: The Unity and Diversity of Life (MindTap Course List)
15th Edition
ISBN: 9781337408332
Author: Cecie Starr, Ralph Taggart, Christine Evers, Lisa Starr
Publisher: Cengage Learning
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Chapter 11, Problem 4CT
The cell above is a lung cell of a salamander. In which stage of mitosis is it? What are the structures visible in green and blue fluorescence?
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Speculate about the following details of mitosis.
1. Why do chromosomes need to condense during mitosis?
2. Why does the nuclear membrane need to break down at the beginning of prometaphase?
3. Why do chromosomes congress (migrate) toward the metaphase plate during metaphase, and what forces keep the chromosomes there until anaphase begins?
4. What would happen if one kinetochore of one chromosome failed to attach to the spindle and the cell entered anaphase? In a general sense, how do cells normally prevent this situation?
5. During late anaphase and telophase, animal cells elongate to aid the eventual separation of the two daughter cells in cytokinesis. This elongation can occur even in cell suspensions, where different cells do not come into contact. Are the forces that elongate the cell likely to be pushing forces or pulling forces, and where do these forces come from?
At the end of mitosis in Aedes aegypti, each of the daughter cells will have
chromosomes; however, at the end of meiosis, each daughter cell will end up with
chromosomes.
why do unicellular organisms do mitosis
Chapter 11 Solutions
Biology: The Unity and Diversity of Life (MindTap Course List)
Ch. 11 - HeLa Cells Are a Genetic Mess HeLa cells can vary...Ch. 11 - HeLa Cells Are a Genetic Mess HeLa cells can vary...Ch. 11 - HeLa Cells Are a Genetic Mess HeLa cells can vary...Ch. 11 - Prob. 1SQCh. 11 - A duplicated chromosome has how many chromatids?Ch. 11 - In the diagrams of the nucleus shown below, fill...Ch. 11 - Homologous chromosomes _______. a. are inherited...Ch. 11 - Most healthy body cells spend the majority of...Ch. 11 - The spindle attaches to chromosomes at the...Ch. 11 - Which is not a stage of mitosis? a. prophase b....
Ch. 11 - In intervals of interphase, G stands for ______....Ch. 11 - Interphase is the part of the cell cycle when...Ch. 11 - After mitosis the chromosome number of a...Ch. 11 - Cytoplasm of a plant cell divides by the process...Ch. 11 - Prob. 12SQCh. 11 - Match each stage with the events listed. _____...Ch. 11 - Prob. 14SQCh. 11 - Prob. 15SQCh. 11 - When a cell reproduces by mitosis and cytoplasmic...Ch. 11 - How is the human life cycle related to the cell...Ch. 11 - The photo on the left shows an early frog embryo...Ch. 11 - The cell above is a lung cell of a salamander. In...Ch. 11 - The eukaryotic cell at left is in the process of...Ch. 11 - Exposure to radioisotopes or other sources of...
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- The individual chromosomes become visible with a light microscope during which stage of mitosis? a. prophase b. prometaphase c. metaphase d. anaphasearrow_forwardWhat are the phases displayed?arrow_forwardThe image below is of a stained onion root tip. Determine the phase of mitosis that each cell below is in, and record that below. Look closely - cells that are clearly stained are numbered in the image below. Use those numbers when assigning the phase of mitosis for each cell. Using the same onion root tip image and data from the question above, which phase are the majority of cells in? Make a conclusion about what this means about the length of each phase of the cell cycle.arrow_forward
- Give the Haploid Number of Chromosomes for a Varietyof Organisms (see below) Common Name Scientific Name Pink bread mold Neurospora crassaarrow_forwardGive typing answer with explanation and conclusion Identify the phases of mitosis in a fish blastula slide at 400X TM. Take a picture with your camera and add the images to your electronic lab notebook. Alternatively, you can draw the images and add a photo of your drawing AND Identify the phases of mitosis listed below. Interphase Prophase Metaphase Anaphase Telophasearrow_forwardIn Coleus , the somatic cells are diploid with 24 chromosomes. How many of each of the following is present in each cell at the stage of mitosis and meiosis indicated below? kinetochore at prophase chromosomes at anaphase chromatids at metaphase 1 chromosomes at telophase after cytokinesis centromeres at anaphase chromosomes at telophase II after cytokinesis centromere at anaphase I chromatids at metaphasearrow_forward
- What is one difference between plant and animal cells in mitosis ? Plant cells form a cleavage furrow in prophase and animal cells do not. Animal cells form a cleavage furrow and plant cells form a cell plate in cytokinesis. Plant cells form a cell plate in cytokinesis and animal cells form a cleavage furrow in metaphase. Animal cells form a cell plate and plant cells do not.arrow_forwardWhich statements are true for mitosis? Select all that apply: 1. produces identical daughter cells 2. involved in sexual reproduction 3. reduces the number of chromosomes 4. involved in general growth and repair or asexual reproduction 5. produces cells that are almost always genetically different 6. produces diploid somatic cells 7. produces haploid gametesarrow_forwardGiven that the first division of the zygote divides the embryo into the future right and left halves of the butterfly, complete a hypothesis that explains how nondisjunction during the first mitosis might have produced this unusual-looking butterfly. Match the terms In the left column to the approprlate blanks In the sentences on the right. Not all terms will be used. Reset Help female The zygote has the genotype. If nondisjunction occurs during the first mitosis the left cell will have the genotype and develops to the half. The right half. daughter cell will have the genotype and develops to the XXXX XX male XXX XYarrow_forward
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Cell Division - Mitosis and Meiosis - GCSE Biology (9-1); Author: Mr Exham Biology;https://www.youtube.com/watch?v=w7vp_uRA8kw;License: Standard YouTube License, CC-BY