Homework Answers
Crossing over is a process that takes place during the prophase 1 phase of meiosis. Here, there is an exchange of genetic material between the two homologous pair of chromosomes. This process is illustrated in the following diagram,
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10. Crossing over and trait segregation. Draw a diagram to show how crossing over could affect...
Simulate meiosis by drawing Two pairs of chromosomes with crossing over Assume that two of the...
Simulate meiosis by drawing Two pairs of chromosomes with crossing over Assume that two of the genes are on chromosome 1, and one of the genes is on chromosome 2. Allow crossing over to occur between the two genes on the same chromosome. Also, are there multiple ways that the chromosomes could segregate to produce different results? Show them. Instructions: Set up your cell. The cell you start with should be: A diploid cell It should contain 2 pairs of...
Simulate meiosis by drawing One pair of chromosomes and no crossing over Instructions: Set up your...
Simulate meiosis by drawing One pair of chromosomes and no crossing over Instructions: Set up your cell. The cell you start with should be: A diploid cell It should contain 1 pair of homologous chromosomes It should be in G1 of the cell cycle, before DNA replication occurs Be sure to show 2 genes that are both heterozygous . Go through the steps of meiosis. Be sure to show and label these in your pictures: Label homologous chromosomes and sister...
Crossing-Over in Meiosis Meiosis is a process of nuclear division that reduces the number of chromosomes...
Crossing-Over in Meiosis Meiosis is a process of nuclear division that reduces the number of chromosomes in new cells to half the number in the original cell. The parent cell is diploid (2n), and it begins meiosis with a replicated set of chromosomes. During meiosis, this parent cell Homologou will divide twice to create four haploid (1n) cells. pairs During prophase I of meiosis I, homologous pairs of chromosomes pair up and stick together to form tetrads through the process...
1. Draw TWO PAIRS of metacentric homologous chromosomes as they would appear, if they could be...
1. Draw TWO PAIRS of metacentric homologous chromosomes as they would appear, if they could be seen, during of the cell cycle. Indicate centromeres with a small circle. For one pair of homologs, place the allele on one chromosome and the allele a on the other chromosome. For the other pair of homologs place the allele on one chromosome and the alleleb on the other chromosome. 2. Draw the same chromosomes as they would appear at the end of prophase...
Shaw University 8. Which of the following statements is correct? a. Crossing over occurs in prophase...
Shaw University 8. Which of the following statements is correct? a. Crossing over occurs in prophase I of meiosis and metaphase of mitosis. b. DNA replication occurs once prior to mitosis and twice prior to meiosis c. Both mitosis and meiosis result in daughter cells identical to the parent cells. d. Karyokinesis occurs once in mitosis and twice in meiosis. e. Synapsis occurs in prophase of mitosis. 9. The cell cycle in a certain cell type has a duration of...
Generating. A cell is 2n = 4 and will soon go through meiosis I and meiosis...
Generating. A cell is 2n = 4 and will soon go through meiosis I and meiosis II, to become four genetically distinct haploid cells. Draw and label all the stages (prophase I, metaphase II, etc.) and the location/distribution of chromosomes using red and blue colors for the chromosomes in cach stage. In at least one of the homologous pairs, show crossing over using two different alleles of your choice. (15 points)
underers meiosis, how many cells will result, 12) If a eukaryotic cell has 20 chromosomes and...
underers meiosis, how many cells will result, 12) If a eukaryotic cell has 20 chromosomes and and how many chromosomes will they contain? A) 4 cells, each with 20 chromosomes B) 4 cells, each with 10 chromosomes C) 2 cells, each with 10 chromosomes D) 2 cells, each with 20 chromosomes Answer: 13) Crossing over occurs during which stage of meiosis? A) telophase I B) metaphase II C) anaphase II D) prophase II E) prophase I Answer: 14) Which of...
7. Using a single line (I) to represent a chromosome and two crossed lines (x) to...
7. Using a single line (I) to represent a chromosome and two crossed lines (x) to represent two sister chromatids joined together into a single chromosome, diagram the arrangement of your experimental chromosomes through the process of meiosis. Interphase Prophase through telophasel Melosis daughter cells and Melosisi Melosis #1 daughter cells 8. Using your completed diagram from Question 7 answer the following questions associated with meiosis 1: a. What is the number of chromosomes in each daughter cell? b. Does...
Q2.10. Complete the diagram below by dragging each label to its correct location. When you have...
Q2.10. Complete the diagram below by dragging each label to its correct location. When you have placed all labels, click Check Answer to get feedback. Any labels that are incorrectly placed will move me diagram Q2.11. The image to the right shows 2 pairs of homologous chromosomes in a cell. Which of the following daughter cells could NOT be produced by normal meiosis? Q2.12. When are sister chromatids (in/from the same chromosome) equivalent to each other? Q2.13. If a person is homozygous for the...
4. Complete the following table. Mitosis Meiosis MitosisMeiosis Synapsis (Yes or no Crossing over (When) Anaphase...
4. Complete the following table. Mitosis Meiosis MitosisMeiosis Synapsis (Yes or no Crossing over (When) Anaphase I results When do centromeres divide No. of divisions No. of cells resulting Anaphase II results No. of chromosomes in daughter cells Assume cell divisions are occurring on the arrows in this gen- eralized plant life cycle. Show where mitosis and meiosis occur. 5. Multicellular diploid plant Spore Multicellular haploid plant Starting with a diploid cell (A) that has 2 homologous chromo- somes (2N-2),...
Crossing-Over in Meiosis Meiosis is a process of nuclear division that reduces the number of chromosomes in new cells to half the number in the original cell. The parent cell is diploid (2n), and it begins meiosis with a replicated set of chromosomes. During meiosis, this parent cell Homologou will divide twice to create four haploid (1n) cells. pairs During prophase I of meiosis I, homologous pairs of chromosomes pair up and stick together to form tetrads through the process...
1. Draw TWO PAIRS of metacentric homologous chromosomes as they would appear, if they could be seen, during of the cell cycle. Indicate centromeres with a small circle. For one pair of homologs, place the allele on one chromosome and the allele a on the other chromosome. For the other pair of homologs place the allele on one chromosome and the alleleb on the other chromosome. 2. Draw the same chromosomes as they would appear at the end of prophase...
Shaw University 8. Which of the following statements is correct? a. Crossing over occurs in prophase I of meiosis and metaphase of mitosis. b. DNA replication occurs once prior to mitosis and twice prior to meiosis c. Both mitosis and meiosis result in daughter cells identical to the parent cells. d. Karyokinesis occurs once in mitosis and twice in meiosis. e. Synapsis occurs in prophase of mitosis. 9. The cell cycle in a certain cell type has a duration of...
Generating. A cell is 2n = 4 and will soon go through meiosis I and meiosis II, to become four genetically distinct haploid cells. Draw and label all the stages (prophase I, metaphase II, etc.) and the location/distribution of chromosomes using red and blue colors for the chromosomes in cach stage. In at least one of the homologous pairs, show crossing over using two different alleles of your choice. (15 points)
underers meiosis, how many cells will result, 12) If a eukaryotic cell has 20 chromosomes and and how many chromosomes will they contain? A) 4 cells, each with 20 chromosomes B) 4 cells, each with 10 chromosomes C) 2 cells, each with 10 chromosomes D) 2 cells, each with 20 chromosomes Answer: 13) Crossing over occurs during which stage of meiosis? A) telophase I B) metaphase II C) anaphase II D) prophase II E) prophase I Answer: 14) Which of...
7. Using a single line (I) to represent a chromosome and two crossed lines (x) to represent two sister chromatids joined together into a single chromosome, diagram the arrangement of your experimental chromosomes through the process of meiosis. Interphase Prophase through telophasel Melosis daughter cells and Melosisi Melosis #1 daughter cells 8. Using your completed diagram from Question 7 answer the following questions associated with meiosis 1: a. What is the number of chromosomes in each daughter cell? b. Does...
4. Complete the following table. Mitosis Meiosis MitosisMeiosis Synapsis (Yes or no Crossing over (When) Anaphase I results When do centromeres divide No. of divisions No. of cells resulting Anaphase II results No. of chromosomes in daughter cells Assume cell divisions are occurring on the arrows in this gen- eralized plant life cycle. Show where mitosis and meiosis occur. 5. Multicellular diploid plant Spore Multicellular haploid plant Starting with a diploid cell (A) that has 2 homologous chromo- somes (2N-2),...
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