Chromosome

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  • Using P-Element Induced Male Recombination to Generate a Deletion in the Dmap1 Gene on Chromosome Two in Drosophila Melanogaster

    5953 Words  | 24 Pages

    Using P-element Induced Male Recombination to Generate a Deletion in the DMAP1 Gene on Chromosome Two in Drosophila melanogaster Abstract: The goal of this study was to induce a deletion in the DMAP1 gene on chromosome two in Drosophila melanogaster through P-element mobilization. The DMAP1 gene may be an essential gene, however not much is known about it. We attempted to uncover the function of DMAP1 by creating a series of genetic crosses and selecting for brown-eyed non-stubble male flies

  • The Importance Of Chromosomes

    897 Words  | 4 Pages

    and mammoth nucleus. Then again let us assume that we find an intact nucleus having a proper DNA inside it, there are still many obstacles to overcome. One being lack of enough knowledge and information about the number of chromosomes that mammoths possessed. Moreover, Y chromosome in a mammal is typically very small and repetitive, therefore, making it hard to sort it out. But, the solution can be sequencing only the female species. Also, determining the exact sequence of other regions including centromere

  • Essay on Biology Chromosome

    849 Words  | 4 Pages

    1. 2. 3. All of Allison’s eggs will carry the X chromosome and 50% of Allison’s egg cells will carry the recessive allele (hexa). 4.a. There is a 25% chance that Allison and Tim will have a baby boy who is heterozygous for Tay-Sachs. b. No, the baby boy will not have Tay-Sachs he will be a carrier for the disease. The boy would only have the disease if he was homozygous recessive. | X | Y | X | XX | XY | X | XX | XY | 1:2 1:2 | T | t | T | TT | Tt | t | Tt | tt

  • The Evolution Of Human Chromosomes

    1815 Words  | 8 Pages

    Introduction Human chromosomes are incredibly complex, containing a variety of different structures necessary to maintain its function; one of these is called a Telomere and is found at the ends of the chromosomes. Telomeres contain thousands of repeats of the repetitive TTAGGG DNA sequence; this is combined with a complex enzyme known as telomerase. Furthermore, the function of this ribonucleoprotein enzyme complex is to maintain telomere length in cancer cells by adding TTAGGG repeats onto the

  • How The Staining Of The Centromere Sequences Using Fish

    1927 Words  | 8 Pages

    used to determine the sex of metaphase chromosomes and how immunostaining of the synaptomenal complex of meiotic cells can show the stages involved in prophase. Abstract Fluorescence in situ hybridisation (FISH) and immunostaining are both processes that allow for specific features within a chromosome to be observed. FISH is when a DNA probe that is fluorescently tagged complementary binds to a specific sequence in the chromosome, in this case, the sex chromosome centromeres. Immunostaining is the process

  • Triple X Syndrome Testing and Diagnosis

    769 Words  | 3 Pages

    drawbacks to her such as miscarriages, uterine contractions or tenderness, feeling shivery (like you’re going down with flu), infection and amniotic fluid leakage which can lead to the baby developing hypoplastic lungs (underdeveloped lungs). A chromosome is a threadlike structure within the nucleus that contains genetic information that is passed

  • Process Of Dividing Body Cells And Their Nuclei Essay

    1268 Words  | 6 Pages

    others up, this leads into setting the stage for their division of the chromosomes that is present. For the chromosomes to be easily pulled apart later on they start o condense during this early stage. The mitotic spindle then begins to form. This spindle is a structure that is made of microtubules, strong fibers that are considered to be the part of the cell’s skeleton. The purpose of the spindle is to organize the chromosomes and to have the ability in moving them around during mitosis. The growth

  • The Process Of Natural Selection

    1584 Words  | 7 Pages

    Introduction Reproduction has been the ultimate goal of every living organism that has ever originated on the earth. Over the time organisms have evolved to become better acclimated to the environment they live in such that reproduction and survival requirements are met. Even so, not every organism born is viable or produce progeny that survive and not every progeny that survives lives long enough to reproduce again. Only those who are strong and successful in reproducing are selected to survive

  • Compare and Contrast Mitosis and Meiosis Essay

    496 Words  | 2 Pages

    organism. Meiosis is a form of cell division that produces gametes in humans these are egg cells and sperms, each with reduced or halved number of chromosomes. The number of chromosomes is restored when two gametes fuse together to form a zygote. A cell with two copies of each chromosome is called diploid cell and a cell with one copy of each chromosome is called a haploid cell. Meioses produces haploid daughter cells that are genetically different from each other and from the parent cell. However

  • Heredity: A Vital Biological Process

    958 Words  | 4 Pages

    composition of chromosomes. The final commodity, chromosomes, is what engages in reproduction of offspring. This is done by fertilization, in eukaryotic cells, when they are in a haploid state as fertilization occurs after the process of meiosis. Meiosis is what aids the uniqueness of individuals and, “ensures variation from parent cell when the two gametes are combined to form a diploid zygote (daughter cell) which has genes from both the paternal and maternal sides” (banninghs, 1997), in chromosomes that