2020 Unit 5 Heredity AP Bio Exam Review -

mat Arrange Tools Slide Show Window Help A 12% D Sat 2:02 PM 2 Chapter 13 clicker questions imations Slide Show Review View Shape Format O Tell me e Share V Play Narrations Always Use Subtitles V Use Timings Rehearse Record Timings Slide Show V Show Media Controls A Subtitle Settings v What allows sister chromatids to finally separate, and in which phase of meiosis does this occur? a) release of cohesin along sister chromatid arms in anaphase I b) crossing over of chromatids in prophase I c) release of ohesin at centromeres in anaphase I d) release of cohesin at centromeres in anaphase II e) crossing over of homologs in prophase I O 2017 Pearson Education, Inc 103% :: E Notes Comments étv MacBook Pro 80 888 * ( & $ 8 9 6 7

11:19 Input page title Re-edit Image Тext Picture Picture 2 Picture 3 Picture 6 Picture 4 Picture 5 Meiosis stage descriptions 7. homologous pairs line up as tetrads along the middle of the cell 8 one of each homologous par reaches the ends of the cell, the cell begins pinching in, and two new nuclear membranes form 9. DNA condenses in two haploid cells, the nuclear membranes disıntegrate 10 sister chromatids spit apart and daughter chromosomes move towards the ends of two cels 11 DNA replication has occured. DNA decondensed in one cel 12 four celis with haif of the genetic material of a body cell result all are different from each other Match the picture or the image with the name of the stage it represents. Use each stage just once for either an image or description E Picture 1 A Earty Interphase Picture 2 B. Late interphase E Picture 3 C Prophase i - Picture 4 D. Metaphase E Anaphase - Picture 5 -v Picture 6 F Telophase - Description 7 v Description 8 - Description 9 G. Interkinesis…

Lab 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)?

Picture 1 Picture 2 Picture 3 Picture 4 Picture 5 Picture 6 Meiosis stage descriptions 7. homologous pairs line up as tetrads along the middle of the cell 8. one of each homologous pair reaches the ends of the cell, the cell begins pinching in, and two new nuclear membranes form 9. DNA condenses in two haploid cells, the nuclear membranes disintegrate 10. sister chromatids split apart and daughter chromosomes move towards the ends of twn cells

Meiosis stage descriptions 7.  homologous pairs line up as tetrads along the middle of the cell 8.  one of each homologous pair reaches the ends of the cell, the cell begins pinching in, and two new nuclear membranes form 9.  DNA condenses in two haploid cells, the nuclear membranes disintegrate 10.  sister chromatids split apart and daughter chromosomes move towards the ends of two cells 11.  DNA replication has occured, DNA decondensed in one cell 12.  four cells with half of the genetic material of a body cell result, all are different from each other Match the picture or the image with the name of the stage it represents.  Use each stage just once for either an image or description.

Write True or False 1. In prophase of mitosis the chromosomes condense in y sharp structure that can be easily seen under microscope 2. In interphase stage of mitosis a membrane forms around each set of chromosomes to create two new nuclei 3. In interphase l of meiosis, the paired chromosomes line up 4. In prophase ll of meiosis, it is visibly obvious that replication has not occurred 5. In telophase l of meiosis, the cell pinches and divides 6. Homologous chromosomes contain the unmatched alleles donated from mother and father 7. In anaphase of mitosis, the sister chromatids are pulled apart by the mitotic spindle which pulls one chromatid to one pole and the chromatid opposite pole 8.At the end of the prophase in mitosis, the membrane around the nucleus in the cell dissolves away releasing the chromosomes. 9.During interphase in mitosis, microtubules extend from centrosomes. 10.If not corrected in time, mistakes made during mitosis can result changes in DNA but will not lead to…

Task: Order the events leading up to and during meiosis : Sister chromatids are separated | Chromosomes are replicated | Crossing over occurs 3 : Homologous pairs separate 4 | Production of four haploid daughter cells 5 | Sister chromatids line up along the middle 7 Homologous pairs are lined up along the middle 8 | First division and cytokinesis completed ::: 2.

Genetic problems: Use the diagram below to figure out how each monosomy or trisomy can a) Normal X chromosome segregation b) Nondisjunction in meiosis I c) Nondisjunction in meiosis II Diploid cell at start of meiosis First meiotic division Nondisjunction Second meiotic division Nondisjunction 00 00 develop. Benjamim XCuinmi х Х х х Xх хх о о XX O 2. A color-blind man married a normal woman. Their daughter, who was phenotypically normal, married a normal man and the couple produced three children, a normal boy, a color-blind boy, and a color-blind girl. Further examination indicates that this girl has two X chromosomes. Explain the origin of the color- blind girl.

1- what does the cell of cells look like right before the mistake this in meiosis I and meiosis II  2- what does the cell or cells look like during or after the mistake in meiosis I and meiosis II

Activity 8: Sequencing Meiotic StagesLabel the stage of meiosis in each box below each diagram. Then, cut out each figure and arrange the cells so they reflect the proper order of stages of meiosis -starting with a cell in interphase and ending with the completion of meiosis. Write the letter sequence of the cells in your Lab, Activity #8.AMeiosis in animal cell

Picture name - Tradescantia spathacea meiotic cell. HPO (400x)Shown below are photomicrographs of Rhoeo tradescantia cells undergoing meiosis. Answer the following question for each of the photomicrographs: Identify the cytogenetic abnormality observed (ex. ring, chain, laggard, bridge). Identify the meiotic stage in which these aberrations are observed (as shown in the photomicrograph). Explain how these aberrations are formed and relate to the possible causal mutation(s). Will this result to sterile and/or fertile gametes? Explain.

9) A diploid cell is preparing to undergo meiosis. Before the 'S' phase, the cell has 6 picograms (pg) of DNA in it. Answer the following: a) After the 'S' phase of the cell cycle what ploidy is the cell? How many picograms of DNA does it contain? b) After meiosis I, how many daughter cells are there total? What is the ploidy of each cell? How many picograms of DNA does each cell contain?

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

Question: Hand draw meiosis (I and II). Start with 2 pairs of homologous chromosomes. Chromosomes in each pair should look the same BUT should be distinctly different from the other pair of chromosomes.

After meiosis 1, are the resulting cells haploid or diploid? How can you tell?   Group of answer choices   1. haploid; there are no sister chromatids 2. diploid; there are homologous pairs 3. haploid; there are no homologous pairs 4. diploid; there are sister chromatids

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

Comic San.. BIUA ===|三 Normal text 12 II1 3 CP Unit 6 Review: Meiosis Page 1. What type of cell undergoes meiosis? Gamete cells Somațic cells or 2. What are homologous chromosomes? 3. For each of the following state if the cell is haploid or diploid. Sperm cell = Liver cell = Egg cell = Stomach cell = 4. If the diploid number in a liver cell is 52, how many chromosomes are there in the egg of this organism? 5. During meiosis, the chromosome number: a) is doubled becomes diploid b) is reduced c) remains the same d) 6. Cells starting mitosis & meiosis begin with a (haploid or diploid) set of chromosomes. 7. How many times do cells divide during meiosis? 8. What are the stages of meiosis called? Meiosis I: II lılı

12:31 M M Ge meiosis I and meiosis II different? ← 4. Why do you use non-sister chromatids to demonstrate crossing over? 5. What combination of alleles could result from a crossover between BD and bd chromosomes? 6. How many nuclei are present at the end of meiosis II? How many chromosomes are in each? 7. Identify two ways that meiosis contributes to genetic recombination. × Search B Copy text Listen Crop Markup 8. Why is it necessary to reduce the number of chromosomes in gametes? Share 14 ON 5G 32 Edit Lens Delete

Mitosis Meiosis Definition Prophase Metaphase Anaphase Telophase Prophase I Metaphase I Anaphase I Telophase I Prophase II Metaphase II Anaphase II Telophase II Steps of each phase Number of cell divisions Number of cells produced *How many chromosomes per 46 daughter cell? * Mitosis starts with 46 chromosomes in each parent cell, and then ends with 46 chromosomes in each daughter cell. Cells divide onl once in Mitosis, but they divide twice during Meiosis, so we should end with half as many chromosomes in Meiosis vs Mitosis.

Match the phases of meiosis with the correct description Metaphase I [ Choose ] [Choose ] Sister chromatids line up along the center of the cell. Cytokinesis produces four unique daughter cells, spindle dissolve, and the nuclear envelope reappears. Spindle fibers pull homologous pairs of chromosomes apart. Nuclear envelopes of daughter cells dissolve, and chromosomes condense. Spindle fibers pull sister chromatids apart. Homologous pairs of chromosomes line up at the center of the cell in tetrads. Cytokinesis produces two daughter cells, spindle dissolves, and nuclear envelope reappears. Nuclear envelope dissolves, DNA condenses and crossing over occurs. Anaphase II Prophase I Telophase I [Choose ] Prophase II [ Choose ] Telophase II [ Choose ] Anaphase I [ Choose ] Metaphase II [ Choose ] > > >

a.  What phase of Meiosis II is the cell in? How do you know?  b.  Assuming all of the chromosomes present during Meiosis II are shown in the figure above, how many chromosomes (counting homologous pairs as two chromosomes) does a gamete from this organism have?  c. Draw the same cell during the same phase of Meiosis I. Label the elements.

Itosis 48) Which best describes the process of independent assortment? A) The way one pair of homologous chromosomes lines up along the metaphase plate does not affect how any other pair lines up B) Segregation of chromosomes during meiosis I is independent of their segregation during meiosis II C) During crossing over, chromosomes pair up at random D) Crossing over along one pair of chromosomes is independent of crossing over along the other pairs

Meiosis is defined as a ____. Select an answer and submit. For keyboard navigation, use the up/down arrow keys to select an answer. a) type of cell division that is seen in all types of cells b) type of cell division that divides a somatic cell and produces 4 gamete cells c) type of cell division that divides a somatic cell and produces 2 gamete cells d) type of cell division that divides a gamete cell into 2 somatic cells

1. 10 Meiosis Reading and Voc X James Green- Recovery Opportu X d/e/1FAlpQLSe2TqFrpPuk-re3-isqbyWK6SUIH3pkHhJdbT0tlqogh58bww/viewform?hr_submission=Chkis-WD4ZSE What is the process by which haploid gametes combine, forming a diploid 3p cell with 2n chromosomes, with n chromosomes from the female parent and n chromosomes from the male parent? Topography O Fertilization Genomics Crossing over 2 points nit that controls inherited trait expression that is passed II