Homework Answers
Well, if it was immediately before mitosis, it means DNA replication already happened, so the 15 picograms is the whole genome with its sister chromatides. After mitosis, such DNA content will be cut in half, so each daughter cell has 7.5 picograms.
Remember cell cycle: Growth stage 1, Synthesis stage, Growth stage 2, Mitosis. Interphase includes G1, S and G2 stages. Note that G2 is immediately before mitosis, but the S stage already happened, which is the DNA replication stage.
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Question 32 2.3 pts A group of cells is assayed for DNA content/amount immediately before mitosis...
A group of cells in Go is assayed for DNA content an average of 5 picograms...
A group of cells in Go is assayed for DNA content an average of 5 picograms of DNA per nucleus. If they start to divide, then those cells would have _____ picograms of DNA at the end of the S phase and _____ picograms of DNA at the end of mitosis. A. 10, 10 B. 10, 5 C. 5, 5 D. 5, 10 E. 7.5, 10
Use the data in the accompanying table to answer the following question(s). The data were obtained...
Use the data in the accompanying table to answer the following question(s). The data were obtained from a study of the length of time spent in each phase of the cell cycle by cells of three eukaryotic organisms designated beta, delta, and gamma. Cell Type Beta Delta Gamma G S G2 M 18 24 12 16 100 1 00 18 48 14 20 Minutes Spent in Cell Cycle Phases A group of cells is assayed for DNA content immediately following...
Question 33 2.3 pts The daughter cells that result from mitosis are genetically identical have half...
Question 33 2.3 pts The daughter cells that result from mitosis are genetically identical have half as many chromosomes as the parent cell. o have twice as many chromosomes as the parent cell. e have only one member of each homologous pair o have twice as many sister chromatids as the parent cell.
Question 12 4 pts Suppose that a single somatic cell undergoes mitosis and cytokinesis. If you...
Question 12 4 pts Suppose that a single somatic cell undergoes mitosis and cytokinesis. If you compared the original parent cell in G1 with the daughter cells that are produced, which of the following statements would be true? Hint: Overview of Mitosis video • Textbook chapter 10 section 10.2 The daughter cells have the same number of chromosomes and the same amount of DNA The daughter cells have half the amount of cytoplasm and half the amount of DNA. The...
Activity 1: Observation of Mitosis in an Onion and a Whitefish Instructions: View the images in...
Activity 1: Observation of Mitosis in an Onion and a Whitefish Instructions: View the images in Table 1 and Table 2 of the Activity 1 Page to complete blanks below Table 1: Stages of the Cell Cycle in Onion Root Tip Table 2: Stages of Mitosis in Whitefish Blastula *Name Each Stage *Name Each Stage (a) (b) (b) (c) (c) (d) (d) (e) *To name the stages above, choose from: Interphase, Prophase. Metaphase, Anaphase or Telophase/Cytokinesis Identify the number in...
Question 1 1 pts A plant-derived protein known as colchicine can be used to poison cells...
Question 1 1 pts A plant-derived protein known as colchicine can be used to poison cells by blocking the formation of the spindle. Which of the following would result if colchicine is added to a sample of cells in G2? The chromosomes would segregate but in a disorderly pattern. The chromosomes would still line up along across the middle of the cell, but the chromatids would not end up segregating The cells would immediately die. Each resultant daughter cell would...
Quession 14 Which statement about mitosis is true? Select one a. DNA replication is completed in...
Quession 14 Which statement about mitosis is true? Select one a. DNA replication is completed in prophase. b. The chromosome number in the resulting cells is halved c. Two genetically identical daughter cells are formed. d Crossing over occurs during prophase e. It consists of two nuclear divisions. Quession 15 How does a nucleus in G2 difler from a nucleus in G17 Select one a. DNA synthesis occurs only in G1 phase. b Inactive cells are arrested only in G2...
Meiosis - Examining Experimental Data Tre after Induction Aretage Amount of DNA per Cell 24.0 When...
Meiosis - Examining Experimental Data Tre after Induction Aretage Amount of DNA per Cell 24.0 When nutrients are low, cells of the budding yeast, Saccharomyces cerevisiae, exit the mitotic cell cycle and enter meiosis. In this exercise, you will track the DNA content of a population of yeast cells as they progress through meiosis 470 475 0 30 Researchers grew a culture of yeast cells in a nutrient-rich medium and then transferred them to a nutrient-poor medium to induce meiosis....
Unit 3 Study Resource Meiosis • Process by which diploid cells create haploid cells NOT part...
Unit 3 Study Resource Meiosis • Process by which diploid cells create haploid cells NOT part of the cell cycle > only some cells ever undergo meiosis During meiosis I, homologous chromosomes line up to allow them to be separated into two new cells o They can become "tangled" during this phase, which leads to crossing-over (rearranging the alleles) O Result of meiosis I is two non-identical haploid cells Meiosis Il looks very similar to mitosis, in that sister chromatids...
Can anyone help me with this? Thank you. Lab 13. Mitosis and Meiosis Purpose The purpose...
Can anyone help me with this? Thank you.
Lab 13. Mitosis and Meiosis Purpose The purpose of this lab is to understand the process of mitosis and melosis in animal and plant cells. Learning Objectives After completing this lab, you will be able to: 1. Describe the stages of mitosis. 2. Identify the stages of mitosis in an onion root or whitefish blastula using a light microscope. 3. Describe how cytokinesis differs in plant vs. animal cells. 4. Name and...
Use the data in the accompanying table to answer the following question(s). The data were obtained from a study of the length of time spent in each phase of the cell cycle by cells of three eukaryotic organisms designated beta, delta, and gamma. Cell Type Beta Delta Gamma G S G2 M 18 24 12 16 100 1 00 18 48 14 20 Minutes Spent in Cell Cycle Phases A group of cells is assayed for DNA content immediately following...
Question 33 2.3 pts The daughter cells that result from mitosis are genetically identical have half as many chromosomes as the parent cell. o have twice as many chromosomes as the parent cell. e have only one member of each homologous pair o have twice as many sister chromatids as the parent cell.
Question 12 4 pts Suppose that a single somatic cell undergoes mitosis and cytokinesis. If you compared the original parent cell in G1 with the daughter cells that are produced, which of the following statements would be true? Hint: Overview of Mitosis video • Textbook chapter 10 section 10.2 The daughter cells have the same number of chromosomes and the same amount of DNA The daughter cells have half the amount of cytoplasm and half the amount of DNA. The...
Activity 1: Observation of Mitosis in an Onion and a Whitefish Instructions: View the images in Table 1 and Table 2 of the Activity 1 Page to complete blanks below Table 1: Stages of the Cell Cycle in Onion Root Tip Table 2: Stages of Mitosis in Whitefish Blastula *Name Each Stage *Name Each Stage (a) (b) (b) (c) (c) (d) (d) (e) *To name the stages above, choose from: Interphase, Prophase. Metaphase, Anaphase or Telophase/Cytokinesis Identify the number in...
Question 1 1 pts A plant-derived protein known as colchicine can be used to poison cells by blocking the formation of the spindle. Which of the following would result if colchicine is added to a sample of cells in G2? The chromosomes would segregate but in a disorderly pattern. The chromosomes would still line up along across the middle of the cell, but the chromatids would not end up segregating The cells would immediately die. Each resultant daughter cell would...
Quession 14 Which statement about mitosis is true? Select one a. DNA replication is completed in prophase. b. The chromosome number in the resulting cells is halved c. Two genetically identical daughter cells are formed. d Crossing over occurs during prophase e. It consists of two nuclear divisions. Quession 15 How does a nucleus in G2 difler from a nucleus in G17 Select one a. DNA synthesis occurs only in G1 phase. b Inactive cells are arrested only in G2...
Meiosis - Examining Experimental Data Tre after Induction Aretage Amount of DNA per Cell 24.0 When nutrients are low, cells of the budding yeast, Saccharomyces cerevisiae, exit the mitotic cell cycle and enter meiosis. In this exercise, you will track the DNA content of a population of yeast cells as they progress through meiosis 470 475 0 30 Researchers grew a culture of yeast cells in a nutrient-rich medium and then transferred them to a nutrient-poor medium to induce meiosis....
Unit 3 Study Resource Meiosis • Process by which diploid cells create haploid cells NOT part of the cell cycle > only some cells ever undergo meiosis During meiosis I, homologous chromosomes line up to allow them to be separated into two new cells o They can become "tangled" during this phase, which leads to crossing-over (rearranging the alleles) O Result of meiosis I is two non-identical haploid cells Meiosis Il looks very similar to mitosis, in that sister chromatids...
Can anyone help me with this? Thank you.
Lab 13. Mitosis and Meiosis Purpose The purpose of this lab is to understand the process of mitosis and melosis in animal and plant cells. Learning Objectives After completing this lab, you will be able to: 1. Describe the stages of mitosis. 2. Identify the stages of mitosis in an onion root or whitefish blastula using a light microscope. 3. Describe how cytokinesis differs in plant vs. animal cells. 4. Name and...
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