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- 10:10 E ← sisAndMeiosis.docx FREE EDIT PDF FREE CONVERT PDF TO WORD 2. Why are chromosomes important? 3. How are meiosis I and meiosis II different? 1. What is the state of DNA at the end of meiosis I? What about at the end of meiosis II? 4. Why do you use non-sister chromatids to demonstrate crossing over? 7. Identify two ways that meiosis contributes to genetic recombination. 10. P FREE PDF FILLER 5. What combination of alleles could result from a crossover between BD and bd chromosomes? 8. Why is it necessary to reduce the number of chromosomes in gametes? 6. How many nuclei are present at the end of meiosis II? How many chromosomes are in each? a. Sperm Cell b. Egg Cell AP_5 c. Daughter Cell from Mitosis ON 5G I 9. Blue whales have 44 chromosomes in every cell. Determine how many chromosomes you would expect to find in the following: d. Daughter Cell from Meiosis II COUS ra PAGE 10... FREE CONVERT JPG TO PDF X OeScience Labs, 2016Question 5 Review meiosis. This is a multiple answers question. Which statement is true about the meiosis? O Meiosis is preceded by the replication of chromosomes O In early prophase I, each chromosome pairs with its homolog and crossing over occurs O In anaphase I, pairs of homologous chromosomes separate O At the end of meiosis 1, the number of chromosomes is reduced by half and genetic variation is produced. O During Meiosis II, the number of chromosomes is reduced by half and genetic variation is produced.QUESTION 8 Match the stage of meiosis to its description. Watch for "cell" versus "cells". Singular versus plural is a clue that will help you pick the right roman numeral. homologous chromosomes line up next to each other as tetrads along the mid- line of the cell DNA condenses, tetrads form as homologous chromosomes come together and exchange DNA parts in crossing over, nuclear membrane disintegrates A. Early Interphase B. Late Interphase one of each homologous pair reaches the end of the cell, new nuclear membranes form, and the cell membrane begins to pinch in C. Prophase I v DNA condenses in two cells, nuclear membranes disintegrate D. Metaphase I the copies of the chromosomes (daughter chromosomes formerly known as sister chromatids) split apart and move towards the ends of two cells E. Anaphase I v the cell divides into two cells, chromosomes decondense F. Telophase I G. Interkinesis tetrads separate and homologous chromosomes begin to move in opposite directions in a cell H.…
- QUESTION 2 What is crossing over in meiosis? A. DNA exchanges between homologous chromosomes O B. failure of chromosomes to separate properly O C. when chromosomes go from looking like a single line to an X O D. when chromosomes randomly line up across the middle of the cell Click Save and Submit to save and submit. Click Save All Answers to save all answers.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…Shown are three alignments of reciprocal translocation chromosomes in cells about to undergo meiosis. Match the daughter cells that will result after meiosis
- Question 10 of 10 Question 10. In what phase of meiosis is chromosome recombination most common?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.ntent Ô https://learn.humber.ca/ultra/courses/_182213_1/cl/outline * Question Completion Status: Crossing over during prophase I results in O nondisjunction O reciprocal translocation O duplication O genetic variation QUESTION 4 Genetic variation is accomplished by all but one of the following. Choose the exception. O the events of meiosis I O crossing over independent assortment the events of meiosis II O O O O
- QUESTION 8 Which of the following events does not occur during mejosis I? O DNA exchange O crossing-over between homologous chromosomes O separation of sister chromatids O separation of homologous chromosomes O pairing of homologous chromosomes QUESTION 9 The sources of genetic variation during meiosis are: O crossing-over and the random assortment of maternal and paternal chromosomes. O random pairing of tetrads and random assortment of maternal and paternal chromosomes. O crossing-over and random pairing of tetrads. O random pairing of tetrads and mutations. O polyploidy and random pairing of tetrads.Question 3: If a karyotypically normal egg was to be fertilized by a sperm from question 1, what are the possible offspring haploid numbers? Select all correct answers. A: 2n=46 B: 2n=47 (XXY) C: 2n=47 (XYY) D: 2n=45 (X) E: 2n=45 (Y) F: 2n=47 (XXX)Formation of Gametes The following cell completed interphase and replicated the chromosomes for meiosis. During the formation of gametes, the chromosomes failed to separate properly during meiosis. Complete the table below by indicating the two possible stages in meiosis where nondisjunction could occur and the possible combination of gametes. A) Type of Nondisjunction (Identify the meiotic stage.): _______________________ Daughter Cell 1 Daughter Cell 2 Daughter Cell 3 Daughter Cell 4 Number of Chromosomes in Each Daughter Cell B) Type of Nondisjunction (Identify the meiotic stage.): _______________________ Daughter Cell 1 Daughter Cell 2 Daughter Cell 3 Daughter Cell 4 Number of Chromosomes in Each Daughter Cell