• Study Resource
  • Explore Categories
    • Arts & Humanities
    • Business
    • Engineering & Technology
    • Foreign Language
    • History
    • Math
    • Science
    • Social Science

    Top subcategories

    • Advanced Math
    • Algebra
    • Basic Math
    • Calculus
    • Geometry
    • Linear Algebra
    • Pre-Algebra
    • Pre-Calculus
    • Statistics And Probability
    • Trigonometry
    • other →

    Top subcategories

    • Astronomy
    • Astrophysics
    • Biology
    • Chemistry
    • Earth Science
    • Environmental Science
    • Health Science
    • Physics
    • other →

    Top subcategories

    • Anthropology
    • Law
    • Political Science
    • Psychology
    • Sociology
    • other →

    Top subcategories

    • Accounting
    • Economics
    • Finance
    • Management
    • other →

    Top subcategories

    • Aerospace Engineering
    • Bioengineering
    • Chemical Engineering
    • Civil Engineering
    • Computer Science
    • Electrical Engineering
    • Industrial Engineering
    • Mechanical Engineering
    • Web Design
    • other →

    Top subcategories

    • Architecture
    • Communications
    • English
    • Gender Studies
    • Music
    • Performing Arts
    • Philosophy
    • Religious Studies
    • Writing
    • other →

    Top subcategories

    • Ancient History
    • European History
    • US History
    • World History
    • other →

    Top subcategories

    • Croatian
    • Czech
    • Finnish
    • Greek
    • Hindi
    • Japanese
    • Korean
    • Persian
    • Swedish
    • Turkish
    • other →
 
Profile Documents Logout
Upload
Q: How does GA induce gene expression in the aleurone cells?
Q: How does GA induce gene expression in the aleurone cells?

... GA binding to receptor GA receptor may interact with G protein that leads to two branches of signaling, one is calcium-dependent and other is Ca-independent 3-6 A second messenger (possibly cGMP) may work in the calcium independent pathway to lead to degradation of repressor proteins (RGA/GAI) and t ...
organic compound foundation
organic compound foundation

... fraction of what scientists believe the total number could be — anywhere from 5 million to 100 million. Because of this abundance and diversity, scientists organize species with similar characteristics into groups based on their structure, function, and relationships. This is known as taxonomy or ta ...
water - Lisle CUSD 202
water - Lisle CUSD 202

... Each chromosome has two strands; each strand is an exact copy of the other. Each individual strand is called a chromatid. The two chromatids are connected by a point called a centromere. ...
Please be sure to save a copy of this activity to your computer!
Please be sure to save a copy of this activity to your computer!

... same thing. What kind of a model to use and how complex it should be depends on its purpose. The usefulness of a model may be limited if it is too simple or if it is needlessly complicated. Choosing a useful model is one of the instances in which intuition and creativity come into play in science, m ...
Cell Membranes
Cell Membranes

... • actively moves molecules to where they are needed ...
Cell Parts compared to a city
Cell Parts compared to a city

... • Microtubules – hollow protein structures (tubulins) – maintain cell shape – cell division (mitotic spindle & centrioles) – projections (cilia & flagella) for movement ...
Cell Membrane
Cell Membrane

... Cells will shrink & die if too much water is lost Plant cells become flaccid ...
Biology CELLS Practice Test with Answer Key
Biology CELLS Practice Test with Answer Key

... A. Eukaryotic cells are smaller than prokaryotic cells. B. Eukaryotic cells have less DNA than prokaryotic cells. C. Eukaryotic cells have more cell walls than prokaryotic cells. D. Eukaryotic cells are more structurally complex than prokaryotic cells. This online assessment item contains material t ...
Ch 4 Review Game
Ch 4 Review Game

... contain more chromosomes than less complex organisms? A: NO (a potato contains more chromosomes than humans) ...
talk_UPR - Columbia University
talk_UPR - Columbia University

... Every gene is a dot Every gene is a line Arrays for 1 hour and 3 hours are consistent. ...
Supplemental File S3. Cell Engineer-Six example
Supplemental File S3. Cell Engineer-Six example

... Your cell’s primary function: transport of sugar from leaves to other parts of the plant. ...
Chapter 7. The Cell: Cytoskeleton
Chapter 7. The Cell: Cytoskeleton

... network of intermediate filaments AP Biology12 Biology ...
File
File

... • When GENETIC INFORMATION from TWO CELLS is combined to produce a NEW organism. • In humans, two specialized SEX CELLS (EGG & SPERM) combined to eventually become you. • We call the FERTILIZED egg cell a ZYGOTE. We all were ZYGOTES. • The offspring are a BLEND of each parent ...
Practice Questions 1: Cell Membrane
Practice Questions 1: Cell Membrane

... If this activity requires the use of energy, which substance would be the source of this energy? A. B. C. D. ...
Live imaging genetically-encoded fluorescent proteins in embryonic
Live imaging genetically-encoded fluorescent proteins in embryonic

... ES cells as a model for cellular differentiation The pluripotency of ES cells, their ease of manipulation in culture, and their ability to contribute to the mouse germline, has not only facilitated a plethora of strategies for genetic modifications at base pair resolution (See for examples [55-57]), ...
Cells, Organisms and the Variety of Life
Cells, Organisms and the Variety of Life

... Fungi do not move about but, unlike plants, they do not make their own food by photosynthesis. They grow on their food source, penetrating it with their hyphae. These send enzymes out into their food (= extracellular secretion) and digest it externally before absorbing it, a pattern is called saprop ...
An Electron Microscope Study of Embryonic Heart Muscle Cells
An Electron Microscope Study of Embryonic Heart Muscle Cells

... cultures degenerate and only the fibroblasts survive. The other (G. Levi, W. Lewis, Olivo, etc.) assumed that a loss of structure, a "de-differentiation" takes place in vitro (7). In the material which has been examined by us with the electron microscope, myofibrils were still present after more tha ...
M220 Lecture 21 Cultivation of viruses (continued) Cytopathic effect
M220 Lecture 21 Cultivation of viruses (continued) Cytopathic effect

... assessment of viral growth. This visualization is not apparent when cells are in suspension. Primary cell lines will divide and reproduce for a few generations and then will die. The viral culture will disappear along with these host cells at the time of death. This may be a problem for the research ...
Growth and development The whole picture begins to emerge
Growth and development The whole picture begins to emerge

... vast extant literature on this topic. While several substantial gaps in experimental and theoretical understanding remain to be bridged, it is obvious that transcriptional networks impinge heavily on most if not all cellular processes. The integration of transcriptional circuits with biochemical and ...
Cell City Project - Mrs. Redwine`s Class
Cell City Project - Mrs. Redwine`s Class

... Construct a 3D model of your city using the set of blueprints you have made and objects you collect to represent each building/structure/organelle. To start you will need a base to build your Cell City. -You may use you anything as the base for your city. A few ideas are: a shoebox, a disposable pan ...
List what you think is necessary in order for something to be
List what you think is necessary in order for something to be

... CELL MEMBRANEIN PLANT CELLS- found just inside the cell wall. IN ANIMAL CELLS – It is the outer covering of the cell. It has tiny openings or pores that control the movement in and out of the cell. It is selectively permeable. ...
Supplementary Materials and Methods (doc 66K)
Supplementary Materials and Methods (doc 66K)

... myofibroblastoid cells termed Mdr2-p19. (a) Serial sections of isolated livers from 4 week old mice are shown after histochemical analysis with trichrome, H&E and anti--SMA. Bile ducts (BD) of p19ARF null livers show cholangiocytes lacking -SMA-positive staining. In contrast, BDs of Mdr2 null and ...
INTRODUCTION TO THE CELL File
INTRODUCTION TO THE CELL File

... to as the ‘powerhouse’ of the cell. 3. ATP is the molecule that most cells use as their main energy ‘currency’. 4. Mitochondria are more numerous in cells that have a high energy requirement - our muscle cells contain a large number of mitochondria, as do liver, heart and sperm cells. 5. Mitochondri ...
rnai_presentation
rnai_presentation

... relative remaining mRNA (%) siRNA knock-down efficiency. mRNA knock-down efficiency of 43 siRNAs targeting 42 of the 49 endogenous genes with predicted cell cycle function as well as the peripheral Golgi coatamer protein COPB as a known suppressible gene. For the remaining six siRNAs qRT-PCR did not ...
Syllabus, BIOSC 2105: Cell Signaling Spring Term, 2014 Instructor
Syllabus, BIOSC 2105: Cell Signaling Spring Term, 2014 Instructor

... to provide an overview of the current concepts of cell signaling, and to  understand the experimental design leading to their formulation. This course is based  on analysis of current literature; the instructor will moderate the discussion, the group  will define key components of the discussion, st ...
< 1 ... 497 498 499 500 501 502 503 504 505 ... 1130 >

Cellular differentiation



In developmental biology, cellular differentiation isa cell changes from one cell type to another. Most commonly this is a less specialized type becoming a more specialized type, such as during cell growth. Differentiation occurs numerous times during the development of a multicellular organism as it changes from a simple zygote to a complex system of tissues and cell types. Differentiation continues in adulthood as adult stem cells divide and create fully differentiated daughter cells during tissue repair and during normal cell turnover. Some differentiation occurs in response to antigen exposure. Differentiation dramatically changes a cell's size, shape, membrane potential, metabolic activity, and responsiveness to signals. These changes are largely due to highly controlled modifications in gene expression and are the study of epigenetics. With a few exceptions, cellular differentiation almost never involves a change in the DNA sequence itself. Thus, different cells can have very different physical characteristics despite having the same genome.A cell that can differentiate into all cell types of the adult organism is known as pluripotent. Such cells are called embryonic stem cells in animals and meristematic cells in higher plants. A cell that can differentiate into all cell types, including the placental tissue, is known as totipotent. In mammals, only the zygote and subsequent blastomeres are totipotent, while in plants many differentiated cells can become totipotent with simple laboratory techniques. In cytopathology, the level of cellular differentiation is used as a measure of cancer progression. ""Grade"" is a marker of how differentiated a cell in a tumor is.
  • studyres.com © 2025
  • DMCA
  • Privacy
  • Terms
  • Report