Normal cell division meiosis and gamete production via meiosis. Explain why the process of mitosis and meiosis are both important to a living organism. When would an organism need to undergo the process of mitosis? Meiosis? What would happen if meiosis did not occur? Mitosis is the cell process of growth and division whereas meiosis is the process of developing reproductive cells. The sperm and egg are critical components for almost all living organisms. Every living organism begins with one
Premium Cell division Reproduction Organism
observations are repressentative of cell division taking place in the oinon root tip. Firstly‚ this is because our numbers of the number of cells in each phase of mitosis are similar to the rest of the groups‚ so we can assume our results are most likely correct. We can also assume our calculations are right because we know that Interphase is the most active phase in the process of cell divison‚ which would agree with our calculations since we assume that approxiamtly 93% of cells are going though Interphase
Premium Chromosome Mitosis Cell nucleus
TABLE OF CONTENT Page List of Illustration | iii - iv | | | Synopsis | v | | | Objective of Experiment | 1 | | | 1. Introduction | 2 | 1.1 Mitosis | 2 - 3 | 1.2 Meiosis
Premium Mitosis Cell cycle Eukaryote
Eddie Lai Clark 7 12/15/11 Cell Division/ DNA / Protein Synthesis Study guide AA: Simple definition AA: Simple explanation AA: Detailed explanation/drawing AA: Questions 1. What is transformation? * Movement of a gene from one organism to another 2. What did Griffith show? * Showed either protein or DNA causes transformation 3. What did Avery show? * Showed that DNA causes transformation or that DNA is hereditary material 4. What did Hershey & Chase show and
Premium Plasmid DNA Escherichia coli
mitosis in the cell of an onion root tip. The hypothesis is that‚ if the lectin does not induce mitosis‚ then there should not be a great change in the number of cells that undergo mitosis. The alternate is‚ if the lectin does induce mitosis‚ then there should be an increase in of cells in mitosis. The control group of the experiment had root tip treated with water‚ and the experimental had root tip treated with lectin. Upon the chi-square analysis‚ it can be concluded that the lectin does induce mitosis
Premium Experiment Scientific method Science
Chapter 4 Study Guide Bio 169 • Individual body cells are specialized -Each type performs specific functions that help maintain homeostasis • Tissues are groups of cells that are similar in structure and perform a common function • Histology – study of tissues PRIMARY TISSUE TYPES: 1) Epithelial Tissue (or epithelium) is a sheet of cells that covers a body surface or lines a body cavity Forms boundaries Occurs in the body as covering and lining epithelium and glandular epithelium
Premium Epithelium Connective tissue
Cell division in animals: mitosis‚ cytokinesis‚ and the cell cycle. Cell division in animals is a two-step process involving mitosis and cytokinesis and is set up by interphase. Interphase is a growth period for the cell. In the nucleus the chromosomes are duplicated but are not yet distinguishable because they are still a form of chromatin. There is also a nucleoli‚ one or more‚ present producing ribosomes that are sent to the cytoplasm. Mitosis is the division of the nucleus and multiplication
Premium Mitosis Cell cycle
Epithelial tissue protects your body from moisture loss‚ bacteria‚ and internal injury. There are two kinds of epithelial tissues: Covering and lining epithelium covers or lines almost all of your internal and external body surfaces; for example‚ the outermost layer of your skin and other organs‚ and the internal surface lining of your lymph vessels and digestive tract. Glandular epithelium secretes hormones or other products such as stomach acid‚ sweat‚ saliva‚ and milk. Connective tissue generally
Premium Neuron Muscle Bone
Date______________ Period____ Tissues Lab Directions: This lab is broken down into three sections: Epithelial Tissue‚ Connective Tissue‚ and Muscle & Nerve Tissue. For each section‚ read the background and answer any questions before you come to class‚ then in class sketch the specimens listed under each sketch circle. For your sketches‚ include the total magnification under which you viewed the specimen and be very detailed in your sketch. Epithelial Tissue Background Functions of Epithelium
Premium Connective tissue Muscle Blood
PLANT TISSUES (pp 261-268) HOW ARE CELLS ORGANIZED IN PLANTS? I. MERISTEMATIC TISSUES A. APICAL MERISTEMS Primary Growth 1. Initials a. Occur near tips of roots and shoots b. Cells have thin walls‚ prominent nuclei‚ and small vacuoles c. Functions 1) Establish patterns of growth. • Leaf pattern. 2) Produce new‚ genetically healthy cells 3) Produce derivatives which in turn account for primary growth i.e. elongation. 2. Derivatives a. Protoderm - becomes
Premium Phloem Plant anatomy Plant physiology