four gametes are produced from a single meiotic division. Thenumber of chromosomes present in gametes is half that of thenumber of chromosomes present in the organism.< II >3How many recombinant chromosomes areproduced by meiosis in the figure shown?In organisms that reproduce sexually, two sets of chromosomesare present. One set is contributed by the mother while theother set is contributed by the father. Together, the pair ofA0chromosomes form a 'homologous' pair.During production of gametes via meiosis, crossing over resultsin the exchange of genetic information between homologouschromosomes. The regions at which the two chromosomesoverlap and remain in contact during crossing over is called theschismatic. As a result of crassing over, new types of'recombination' chromosomes are formed and passed on togametes. The figure shows crossing over between a pair ofhomologous chromosomes.48.W-111BA bbbCrosingHomologouspairover7:19 AM4/8/2021O Type here to searchOF

Genetic linkage is a study that identifies genes or alleles on a single chromosome that are near to…

four gametes are produced from a single meiotic division. The number of chromosomes present in gametes is half that of the number of chromosomes present in the organism. < ||| > How many recombinant chromosomes are produced by meiosis in the figure shown? 3 In organisms that reproduce sexually, two sets of chromosomes are present. One set is contributed by the mother while the other set is contributed by the father. Together, the pair of chromosomes form a 'homologous' pair. B) 2 During production of gametes via meiosis, crossing over results in the exchange of genetic information between homologous 4. chromosomes. The regions at which the two chromosomes overlap and remain in contact during crossing over is called the schismatic. As a result of crassing over, new types of 'recombination' chromosomes are formed and passed on to D) 8 gametes. The figure shows crossing over between a pair of homologous chromosomes. II W-111 b Crosing Homologous pair over

four gametes are produced from a single meiotic division. The number of chromosomes present in gametes is half that of the number of chromosomes present in the organism. < ||| > How many recombinant chromosomes are produced by meiosis in the figure shown? 3 In organisms that reproduce sexually, two sets of chromosomes are present. One set is contributed by the mother while the other set is contributed by the father. Together, the pair of chromosomes form a 'homologous' pair. B) 2 During production of gametes via meiosis, crossing over results in the exchange of genetic information between homologous 4. chromosomes. The regions at which the two chromosomes overlap and remain in contact during crossing over is called the schismatic. As a result of crassing over, new types of 'recombination' chromosomes are formed and passed on to D) 8 gametes. The figure shows crossing over between a pair of homologous chromosomes. II W-111 b Crosing Homologous pair over

Human Physiology: From Cells to Systems (MindTap Course List)

9th Edition

ISBN:9781285866932

Author:Lauralee Sherwood

Publisher:Lauralee Sherwood

Chapter20: The Reproductive System

Section: Chapter Questions

Problem 11RE

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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.
Human females have two X chromosomes (XX); males have one X and one Y chromosome (XY). a. With respect to X-linked alleles, how many different types of gametes can a male produce? b. If a female is homozygous for an X-linked allele, how many types of gametes can she produce with respect to that allele? c. If a female is heterozygous for an X-linked allele, how many types of gametes can she produce with respect to that allele?
Explain how the random alignment of homologous chromosomes during metaphase I contributes to variation in gametes produced by meiosis.
Compare meiotic anaphase I with meiotic anaphase II. Which meiotic anaphase is most similar to the mitotic anaphase?
Human females have two X chromosomes (XX); males have one X and one Y chromosome (XY). a. With respect to X chromosome alleles, how many different types of gametes can a male produce? b. If a female is homozygous for an allele on an X chromosome, how many types of gametes can she produce with respect to that allele? c. If a female is heterozygous for an X chromosome allele, how many types or gametes can she produce with respect to that allele?
We are following the progress of human chromosome 1 during meiosis. At the end of prophase I, how many chromosomes, chromatids, and centromeres are present to ensure that chromosome 1 faithfully traverses meiosis?
Meiosis Explains Mendels Results: Genes Are on Chromosomes The following diagram shows a hypothetical diploid cell. The recessive allele for albinism is represented by a, and d represents the recessive allele for deafness. The normal alleles for these conditions are represented by A and D, respectively. a. According to the principle of segregation, what is segregating in this cell? b. According to Mendels principle of independent assortment, what is independently assorting in this cell? c. How many chromatids are in this cell? d. Write the genotype of the individual from whom this cell was taken. e. What is the phenotype of this individual? f. What stage of cell division is represented by this cell (prophase, metaphase, anaphase, or telophase of meiosis I, meiosis II, or mitosis)? g. After meiosis is complete, how many chromatids and chromosomes will be present in one of the four progeny cells?
Match each term with its 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 time
At which stage of meiosis are sister chromatids separated from each other? a. prophase I b. prophase ll c. anaphase I d. anaphase ll
Adams maternal and paternal chromosomes have alternate forms of a gene that influences whether a person is right-handed or left-handed. One form says right and its partner says left. Visualize one of Adams spermatogonia, in which chromosomes are being duplicated prior to meiosis. Visualize what happens to the chromosomes during anaphase I and II. (It might help to use toothpicks as models of the sister chromatids of each chromosome.) What fraction of Adam's sperm will carry the gene for right-handedness? For left-handedness?
in the experiment of following chromosomal dna mvement througgh meiosis, why. do you use non-sister chromatids to demobstrate crossing over? what combinatiobns of alleles could result from a crossover between BD and bd chromosomes? Identify two ways that meiosis contributes to genetic recombination. Why is it necessary to reduce the number of chromosomes in gametes, but not in other cell?
During zygotene stage of meiosis I, a remarkable pairing of chromosomes occurs. Look at the bottom part of As shown in which “mitosis: growth of the body” has produced cells with four different types of chromosomes. The black ones came from the sperm nucleus. The red ones came from the egg nucleus. If one of these nuclei were to undergo meiosis, which chromosomeswould pair during zygotene (which are homologous)— the long black one with the short black one or the long black one with the long red one?