1. Fill in this table: Mitosis Meiosis Type of reproduction (sexual or asexual) Fof cell'nuclear divisions Synapse/ crossing over? (yes or no) Centromeres dissolve during anaphase? Meiosis I? Meiosis II7 Chromosome # at beginning? Chromosome # at end of process? Meiosis I? Meiosis II? F of daughter nuclei? Daughter cells the same as parent cell? Daughter cells genetically identical to cach other?

1. Fill in this table: Mitosis Meiosis Type of reproduction (sexual or asexual) Fof cell'nuclear divisions Synapse/ crossing over? (yes or no) Centromeres dissolve during anaphase? Meiosis I? Meiosis II7 Chromosome # at beginning? Chromosome # at end of process? Meiosis I? Meiosis II? F of daughter nuclei? Daughter cells the same as parent cell? Daughter cells genetically identical to cach other?

Human Heredity: Principles and Issues (MindTap Course List)

11th Edition

ISBN:9781305251052

Author:Michael Cummings

Publisher:Michael Cummings

Chapter2: Cells And Cell Division

Section: Chapter Questions

Problem 23QP: A cell has a diploid number of 6 (2n = 6). a. Draw the cell in metaphase of meiosis I. b. Draw the...

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A cell has a diploid number of 6 (2n = 6). a. Draw the cell in metaphase of meiosis I. b. Draw the cell in metaphase of mitosis. c. How many chromosomes are present in a daughter cell after meiosis I? d. How many chromatids are present in a daughter cell after meiosis II? e. How many chromosomes are present in a daughter cell after mitosis? f. How many pairs of homologous chromosomes are visible in the cell in metaphase of meiosis I?
Figure 13.6 Which of the following statements about nondisjunction is true? Nondisjunction only results in gametes with n+1 or n-1 chromosomes. Nondisjunction occurring during meiosis II results in 50 percent normal gametes. Nondisjunction during meiosis I results in 50 percent normal gametes. Nondisjunction always results in four different kinds of gametes.
At which stage of meiosis are sister chromatids separated from each other? a. prophase I b. prophase ll c. anaphase I d. anaphase ll
Which statement best describes the genetic content of the two daughter cells in prophase II of meiosis? haploid with one copy of each gene haploid with two copies of each gene diploid with two copies of each gene diploid with four copies of each gene
Tetraploidy may result from: a. lack of cytokinesis in meiosis II b. nondisjunction in meiosis I c. lack of cytokinesis in mitosis d. nondisjunction in mitosis in the early embryo e. none of these
The chromosome constitution number of this individual is 2=6. This drawing represents: a. mitotic metaphase. b. meiotic metaphase I. c. meiotic metaphase II. d. a gamete. e. sixnonhomologous chromosomes.
Match the description with the phase of meiosis. Letters may be used more than once. Homologous chromosomes line up at the equator. 1. prophase I The nuclear membrane 2. metaphase I dissolves around a haploid number of chromosomes. 3. anaphase I Disjunction (separation) of homologous chromosomes 4. telophase I occurs. 5. prophase II Centromeres divide and sister chromatids separate. 6. metaphase | Crossing-over begins. 7. anaphase II 8. telophase II Synapsis occurs. > >
View the meiosis 1 and 2 animation 7. At the end of meiosis 2, each cell contains how many chromosomes? Part 4: A Review of Meiosis 8. Name 2 errors that can occur during meiosis. Phase Diagrams Label these phases xXx -XX XX XX 151118
MITOSIS MEIOSIS 1. Haploid cells are produced 2. Crossing over takes place 3. One division 4. Diploid cells 5. Formation of tetrads 6. Somatic cells 7. For sexual reproduction 8.2 daughter cells 9. Two divisions 10.Separation of homologous chromosomes 11.Daughter cels with chromosomes identical to parent cell 12. For repair of damaged tissue 13 Cross-linkage of genes 14 Sex cells 15 Daughter cells not identica to the parent cell O 0 O 0 O OO0 O o o O 0 0 o 0 O O O O O
+ 1. Complete the table below for chromosome and chromatid number for a human cell: Mitosis Prophase Metaphase Anaphase Telophase End of Mitosis Meiosis I Prophase Metaphase Anaphase Telophase End of Meiosis I Meiosis II Prophase Metaphase Anaphase Telophase End of Meiosis II Chromosome Number Chromatid Number
You are to compare mitosis with meiosis I and II for a diploid cell that is 2N = 46 chromosomes. (2N = 46)e] Mitosis Meiosis I and II How times are the chromosomes a. b. duplicated/replicated? d. at the end of meiosis Number of daughter cells at the end of division C. f. meiosis I and II How many times does the cell divide? Choice: 0, 1 or 2? е. How many chromosomes are in h. end of meiosis I and II each daughter cell at the end of division if 2n = 46? g. How the chromosomes lined up during metaphase (not the j. meiosis I only i. middle)? L. meiosis I only What separates during Anaphase? k. When does crossing over occur? m. n. When does independent O. assortment occur? p.
9. Complete the chart below comparing the process of mitosis to meiosis. mitosis meiosis Purpose #cell divisions (1 or 2) #cells produced (2 or 4) Are new cells gametes or somatic cells? Are new cells haploid or diploid? Does crossing over occur? When? Are new cells genetically identical or Different than parent cell?