10:10 E← sisAndMeiosis.docxFREE EDITPDFFREE CONVERTPDF TO WORD2. 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. PFREE PDFFILLER5. 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 Cellb. Egg CellAP_5c. Daughter Cell from MitosisON 5G I9. Blue whales have 44 chromosomes in every cell. Determine how many chromosomes you wouldexpect to find in the following:d. Daughter Cell from Meiosis IICOUSraPAGE 10...FREE CONVERTJPG TO PDFXOeScience Labs, 2016

Note :- Since you have asked multiple questions im only answering the ist 3 as per bartleby…

1. What is the state of DNA at the end of meiosis I? What about at the end of meiosis II? 2. Why are chromosomes important? 3. How are 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. 8. Why is it necessary to reduce the number of chromosomes in gametes? 9. Blue whales have 44 chromosomes in every cell. Determine how many chromosomes you would expect to find in the following: a. Sperm Cell b. Egg Cell

1. What is the state of DNA at the end of meiosis I? What about at the end of meiosis II? 2. Why are chromosomes important? 3. How are 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. 8. Why is it necessary to reduce the number of chromosomes in gametes? 9. Blue whales have 44 chromosomes in every cell. Determine how many chromosomes you would expect to find in the following: a. Sperm Cell b. Egg Cell

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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Explain how the random alignment of homologous chromosomes during metaphase I contributes to the variation in gametes produced by meiosis.
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? prophase I prophase II anaphase I anaphase II
In what ways is meiosis II similar to and different from mitosis of a diploid cell?
Arial 11 BIUA 田回▼ 三=三|三|: 12 II 4. Below is a diploid cell in meiosis. a. Label one set of homologous chromosomes, one set of sister chromatids and one set of heterologous chromosomes. b. How many alleles of the 'A' alleles are present in the cell at Prophase 1? c. How many copies of the 'A' genes are present in each cell at Prophase II? d. How many 'a' alleles are present in Anaphase 1? e. How many 'F' alleles are present in each cell in Metaphase I? f. How many 'f alleles are present in each cell in Metaphase ll? g. How many 'F' genes are present in each gamete? h. How many chromosomes will be present in each gamete? MacBook Air
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
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
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.
. Four of the following events are part of both meiosis andmitosis, but only one is meiotic. Which one? (1) Chromatidformation, (2) spindle formation, (3) chromosome condensation, (4) chromosome movement to poles, (5)synapsis.
A. 1. Division of the cell nucleus, results in two daughter nuclei, each have the same number of chromosomes as the parent nucleus. 2. One two identical halves of a duplicated chromosome. 3. Fusion of haploid (n) gametes; results in the formation of a diploid (2)n zygote. 4. The breaking and rejoining of homologous (non sister) chromatids during early meiotic prophase I, resulting in an exchange of genetic material. 5. The diploid (2n) cell that results from the union of haploid (n) gametes in sexual reproduction. 6. The condition of having one set of chromosomes per nucleus. 7. The complex of DNA, proteins and some RNA that makes up eukaryotic chromosomes. 8. Structures in the cell nucleus, composed of chromatin and containing the genes. 9. An X-shaped site in a tetrad marking the location where homologous chromatids previously underwent crossing over. 10. A sex cell; in plants and animals, an egg or sperm. 11. Type of reproduction in which two gametes (usually, but not necessarily,…
Match the following: A duplicated chromosome is made of 2.A maternal and paternal chromosome present together, each with two sister chromatids 3.Semi-condensed DNA made up of coiled nucleosomes. 4.Super-coiled DNA strands. 5.Contains only one copy of each chromosome. 6.Name of an error during meiosis resulting in fewer chromosomes than normal in a zygote or individual (2n-1) 7.General term for an error resulting in the incorrect number of chromosomes in a gamete after meiosis 8.A specific version of a gene, such as blue eye colour 9.A region on a chromosome that codes for a protein 10.Region where chromosomes are attached 11.None of the above (should be selected more than once) with monosomy trisomy aneuploidy centromere gene sister chromatids diploid Haploid tetrad telomere Chromosomes Chromatin allele