Concept explainers
To determine: The proper chromosomal constitution of a cell.
Introduction: Chromosome is a part of DNA that contains all genetic information. The chromosome is consisting of a packaging protein that binds with condense DNA molecules to prevent from the unmanageable problem.
Explanation of Solution
Cell division is an important event in which the division of parental cells leads to the two or more daughter cells. The cell division is taken place by mitosis and meiosis. Mitosis involves a single nuclear division after
Whereas, meiosis involves two nuclear division without DNA replication and produces four daughter cells. Every daughter cells contain half of the original number of chromosomes because crossing over takes place in the prophase I of meiosis.
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Chapter 11 Solutions
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- help with the question attachedarrow_forwardLab 11- Mitosis & Meiosis If provided microscope images of plant cells, can you determine if they are in Interphase and/or identify the particular Mitosis stage (Pro, Prometa, Meta, Ana, Telo)? If provided meiosis beads (like what we used in lab), can you look at how they are arranged and determine what meiosis stage is being represented (the stage name and if it's from Meiosis-l or Meiosis-II)?arrow_forwardFigure 6.4 Which of the following is the correct order of events in mitosis? a. Sister chromatids line up at the metaphase plate. The kinetochore becomes attached to the initotic spindle. The nucleus re-forms and the cell divides. The sister chromatids separate. b. The kinetochore becomes attached to the mitotic spindle. The sister chromatids separate. Sister chromatids line up at the metaphase plate. The nucleus re-forms and the cell divides. c. The kinetochore becomes attached to metaphase plate. Sister chromatids line up at the metaphase plate. The kinetochore breaks down and the sister chromatids separate. The nucleus re-forms and the cell divides. d. The kinetochore becomes attached to the mitotic spindle. Sister chromatids line up at the metaphase plate. The kinetochore breaks apart and the sister chromatids separate. The nucleus re-forms and the cell divides.arrow_forward
- BIO 1331: Organismal Biology, Meiosis In-Class Assignment 8. What is the ploidy of this cell, now? Name: Figure 3 9. What happened to the cell between Figure 2 and 3? 10. Do individuals that are homozygous at a given locus have different gamete genotypes? 11. How many different types of gametes can an individual with the genotypes given below produce? (Assume no crossing over). What are those gamete genotypes? a. Aa: Example - this is one gene and the individual is heterozygous, so they will make two types of gametes: "A" and "a" b. AaBb c. AaBbCC d. AaBbCCDd What are the possible offspring from a cross of the following two individual parents: AABbCc x AABbCC; Make a punnett square for each gene individually (A, B & C) "A" "B" "C" 12. List the possible genotypes of the offspring for the three genes (A, B and C) combined: 2arrow_forwardpls answer item no.1-3arrow_forwardDirections : Determine whether the following characteristics apply to mitosis, meiosis, or both, by putting into appropriate column.1. No crossing over of chromatid arms.2. Two divisions of the nucleus.3. Four daughter cells produced.4. Associated with growth, development, and asexual reproduction.5. Associated with sexual reproduction.6. One division of the nucleus7. Two daughter cells produced.8. Involves duplication of chromosomes during interphase.9. Chromosome number remains the same.10. Chromosome number is halved.11. Crossing over between chromatid arms may occur.12. Daughter cells are identical to parent cell.13. Daughter cells are not identical to parent cell.14. Produces sex cells. (egg and sperm cells)15. Happens in plant and animal cells.16. Type of cell division.17. Parent cell has 46 chromosomes (in human)18. Daughter cell has 23 chromosomes (in human)19. Daughter cell has 46 chromosomes (in human)20. Produces body cells. (Skin, bone, nerve, etc.)arrow_forward
- Please asaparrow_forwardComparing Mitosis and Meiosis: How many cells at the end? The ploidy of the end cells? The purpose of the process (when is it used)? The differences in the steps of each process (eg - how are metaphase, metaphase I, and metaphase II different)?arrow_forwardpls answer no. 5 and 6 onlyarrow_forward
- x * X Given the cell shown here, answer the following three questions. 1. Describe the ploidy and total chromosome count of this cell without using any words. 2. What checkpoint in the cell cycle will allow this cell to move to the next phase? 3. What will be the ploidy of the two resulting daughter cells? 4. If non-disjunction occurred in one of the chromosomes shown here, what would be the ploidy of each of the resulting daughter cells?arrow_forwardComparison of Mitosis and Meiosis Mitosis Meiosis 1. Number of divisions 2. Chromosome number of daughter cells 3. Number of daughter cells | 4. Produces gametes? (yes or no) 5. Location in body 6. Recombination of DNA? 7. DNA replication? 8. Importance (uses in the body of animals or plants)arrow_forwardweek 2arrow_forward
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