Mitosis

ABSTRACT: The purpose of this lab is to describe possible genotypes of corn and plants in procedure 17.2, and find their color and height ratio; in procedure 17.3 codominance will be observed in human blood, and the blood types of unknown samples will be determined. In procedure 17.4, Rh positive and Rh negative will be tested for in blood samples. A unit of heredity on a chromosome is called a gene. Mendel’s particulate theory states that offspring have characteristics inherited from their…

Sexual reproduction is a type of reproduction in which two different cells combine, which create an offspring. When two cells called the egg for female, and sperm for male, combine and join together they create a new organism called a zygote. During meiosis, one diploid cell divides and makes four haploid sex cells. Meiosis has two divisions of the cytoplasm and the nucleus, the divisions are called Meiosis I and Meiosis II. Reproductive cells go through interphase before meiosis. “ A…

Vinorelbine also known as Navelbine® is an anti-cancer chemotherapy drug. It belongs to a class of chemotherapy drugs called vinca-alkaloids; which can be categorised as spindle poisons1. Vinorelbine and Vindesine are semi-synthetic derivatives from the first generation of vinca-alkaloids; Vinblastine and Vincristine2. These original vinca-alkaloids were derived from dried leaves of the Madagascan periwinkle (vinca rosea) plant1. Madagascar periwinkle is also used in the treatment for diabetes,…

Centrioles are a paired feature of animal mitotic spindles that protrude away from the centrisome of cells and are primarily tasked with the creation of microtubules. The microtubules give way to mitotic spindles, which play a vital role in both mitosis and cytokinesis as they give cilia and flagellum the ability to generate motion and they ensure both newly formed cells contain paired centrioles during the later stages of cell division. Kinetochores are protein structures that produce…

video microscopy. 3. SKA3 (previously named C13orf3) is a protein which plays a large role in the attachment of kinetochore-microtubules and movement of chromosomes2. SKA3 localizes to the spindle and kinetochore–microtubule interface throughout mitosis,…

Mitosis is cell division that results in two daughter cells with each cells having the same number and kind of chromosomes as the parent nucleus, typical of ordinary tissue growth. When things go wrong in mitosis, it causes mutations. Mutations prevent the cells from being what they need to be and doing what they need to do. Cells can produce too many proteins or it could not produce the protein that tells the cell to stop dividing, so the cell can keep dividing and not stop. Mitosis is the most…

Meiosis is the process in which a diploid cell is divided into 4 haploid cells. Meiosis is separated into two parts meiosis I and meiosis II. In meiosis I, the first step is interphase and in this phase DNA is replicated. For example, in the diagram the DNA of big A, small a, big B, small b will all be replicated. This will create a doubling of the DNA that existed and will later be condensed into chromosomes. After interphase, prophase I occurs; in prophase I the replicated chromosomes pair up…

Meiosis is a type of cell division that occurs in sexually reproductive organisms that leads to the production of reproductive cells called gametes. The process of meiosis begins with a diploid (2n) cell, which has a full amount of chromosomes. For example, in humans, the diploid number is 46. Meiosis gives the end product of four haploid (n) gametes, which have half of the amount of DNA that their parent cells have. In humans, this haploid number is 23. The process of meiosis has many steps…

Meiosis is the dividing of cells as the embryo develops in the womb, as stated in the Pearson Anatomy & Physiology edition 10. It starts the haploid division of gametes that further develops the embryo into a fetus and then into a fully functional baby within nine months. This form of cell replication creates four daughter cells that have only half of the amount of chromosomes that are contained within a human body, 23 instead of 46. Within the book it explains that meiosis goes through…

Mitosis & Meiosis are the two major cell division processes. We know that mitosis is used for fulfilling a body’s cell division requirements. However, meiosis is use solely used for one purpose in a human body. It is used for the production of gametes cells, also known as the sex cells. Mitosis and meiosis are quite similar in processes with very few differences. One of the differences is that mitosis has one division whereas there are two divisions in meiosis. This is the reason meiosis is also…