Cross 3: Species X (2n=8) XA Xa XB Xb XCXC XD XD Species Y (2n-6) YE Ye YF Yf YG Y Meiosis ་ Syngamy Sterile Hybrid Chromosome Doubling Fertile Amphidiploid Phenotypes of the amphidiploid organism 3: Conclusion
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please answer the following:
1. how would each be distributed and please complete the chart
2.
3. conclusion
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- a Kemlan - Volum x O Maulina Kemlan - Perso X M Inbox (407) - kemlanm2 x G calculator - Google Sear x A Acellus: m/StudentFunctions/Interface/acellus_engine.html?ClassID=693717332 Unit 2 Exam Cell Division us m What type of cells are created during meiosis? A. diploid gametes B. haploid somatic cells C. haploid (reproductive) cells Using Alte Serve ht 2003 - 2021 Acellus Corporation. All Rights Reserved. ΣWrite 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…What is occurring in the image below and what cell division process does this Occur in? * Homologous chromosomes Recombinant chromatids XX X XX Bivalent Non-sister Sister Chiasma chromatids chromatids crossing over, mitosis
- 2. XX XX translation 10 crossing over Ocell differentation independent assortment O 11 12 IC * 13 * 14 6 15 *REQUIRED 1 The diagram below shows two different possibilities for the arrangement of tetrads of homologous chromosomes during metaphase I of meisosis. Possibility 1 16 17 18 Two equally probable arrangements at Metaphase I give rise to different chromosome combinations 19 This phenonemon that can give rise to increased genetic variation in gametes is known as: 20 Possibility 2 XX XX 21 A 22 23 24Match each term with the best description. _______ DNA replication a. basis of variation in traits _______ metaphase I b. useful for varied offspring _______ alleles c. none between meiosis I meiosis II _______ prophase I d. similar to mitosis _______ zygotes e. haploid _______ gametes f. form at fertilization _______ males g. mash-up time _______ meiosis II h. chromosome lineupFigure 7.2 If a mutation occurs so that a fungus is no longer able to produce a minus mating type, will it still be able to reproduce? Figure 7.2 (a) In animals, sexually reproducing adults form haploid gametes from diploid germ cells. (b) Fungi, such as black bread mold (Rhizopus nigricans), have haploid-dominant life cycles. (c) Plants have a life cycle that alternates between a multicellular haploid organism and a multicellular diploid organism. (credit c fern: modification of work by Cory Zanker; credit c gametophyte: modification of work by Vlmastra/Wikimedia Commons)
- Which of the following is not true in regard to crossover? Spindle microtubules guide the transfer of DNA across the synaptonemal complex Nonsister chromatids exchange genetic material Chiasmata are formed Recombination nodules mark the crossover point.Match the terms with the best description. ______ dihybrid cross a. bb ______ monohybrid cross b. AaBb AaBb ______ homozygous condition c. Aa ______ heterozygous condition d. Aa AaAssume a pericentric inversion occurred in one of two homologs prior to meiosis. The other homolog remains normal. During meiosis, what structure—it any—would these homologs assume in order to pair accurately along their lengths? V formation cruciform loop pairing would not be possible
- Match each term with the best description. __ interphase a. different forms of a gene __ metaphase I b. useful for varied offspring __ alleles c. none between meiosis I and meiosis II __ zygotes d. chromosome lineup __ gametes e. haploid __ males f. form at fertilization __ prophase I g. mash-up timeFigure 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.Using diagrams, illustrate how nondisjunction can result in an aneuploid zygote.