mitosis
... Somatic cell- cell of the body that is not a gamete or a precursor to a gamete Germ cell- gametes (sperm and egg, or their precursors) Karyotype – organized representation of the chromosomes Diploid – each chromosome is in pair, two sets of them Homolog- the member of each par or chromosomes in ...
... Somatic cell- cell of the body that is not a gamete or a precursor to a gamete Germ cell- gametes (sperm and egg, or their precursors) Karyotype – organized representation of the chromosomes Diploid – each chromosome is in pair, two sets of them Homolog- the member of each par or chromosomes in ...
June - ANU
... functioning properly, however, it’s still not known exactly how much function remains. The result is that cells tend to be less well shaped than normal plants. For example, in plants with the mutated gene, growth is normal at 21 degrees C but cells start to lose their shape definition if grown at 31 ...
... functioning properly, however, it’s still not known exactly how much function remains. The result is that cells tend to be less well shaped than normal plants. For example, in plants with the mutated gene, growth is normal at 21 degrees C but cells start to lose their shape definition if grown at 31 ...
A conserved role for kinesin-5 in plant mitosis
... pole is spread across a broad region at each end of the plant spindle, a concept that has reconciled the spindles of plant and animal cells, despite their different polar morphology. Morphological studies of the spindle have been succeeded by molecular studies (Sharp et al., 2000b; Gadde and Heald, ...
... pole is spread across a broad region at each end of the plant spindle, a concept that has reconciled the spindles of plant and animal cells, despite their different polar morphology. Morphological studies of the spindle have been succeeded by molecular studies (Sharp et al., 2000b; Gadde and Heald, ...
A conserved role for kinesin-5 in plant mitosis
... pole is spread across a broad region at each end of the plant spindle, a concept that has reconciled the spindles of plant and animal cells, despite their different polar morphology. Morphological studies of the spindle have been succeeded by molecular studies (Sharp et al., 2000b; Gadde and Heald, ...
... pole is spread across a broad region at each end of the plant spindle, a concept that has reconciled the spindles of plant and animal cells, despite their different polar morphology. Morphological studies of the spindle have been succeeded by molecular studies (Sharp et al., 2000b; Gadde and Heald, ...
Time-Sequence Observations of Microtubule Dynamics throughout
... et al. 1968) supplemented with 1 mg liter"1 2,4-D and 1 mg liter"1 BA. The cell suspensions were repeatedly filtrated through 1-mm pore-sized meshes in order to produce fine cell cultures suitable for observing GFP-labeled-MTs of the cells. After an additional month, the cell line most suitable for ...
... et al. 1968) supplemented with 1 mg liter"1 2,4-D and 1 mg liter"1 BA. The cell suspensions were repeatedly filtrated through 1-mm pore-sized meshes in order to produce fine cell cultures suitable for observing GFP-labeled-MTs of the cells. After an additional month, the cell line most suitable for ...
C2006/F2402 `14 Outline Of Lecture #2 -
... b. How tubule forms: Alpha + beta → dimer → chain of dimers (protofilament) → rings of chains forming a tubule (usually 13 chains/tubule). c. Growth: Chains and tubules grow primarily by addition of dimers to "+" end. (FYI: Growth requires GTP.) d. Anchors: (1). Role: MT usually anchored at (and gro ...
... b. How tubule forms: Alpha + beta → dimer → chain of dimers (protofilament) → rings of chains forming a tubule (usually 13 chains/tubule). c. Growth: Chains and tubules grow primarily by addition of dimers to "+" end. (FYI: Growth requires GTP.) d. Anchors: (1). Role: MT usually anchored at (and gro ...
Lecture #3 Date
... the organelles along microtubules or, in some cases, microfilaments. Vesicles Microtubule 0.25 µm ...
... the organelles along microtubules or, in some cases, microfilaments. Vesicles Microtubule 0.25 µm ...
Unit 2
... 12. Describe probable functions of the cytoskeleton. The cytoskeleton provides support and functions in cell motility. The cytoskeleton is constructed from microtubules, mocrofilaments, and intermediate filaments. Microtubules radiate out from the entrosome and shape and support the cell, guide the ...
... 12. Describe probable functions of the cytoskeleton. The cytoskeleton provides support and functions in cell motility. The cytoskeleton is constructed from microtubules, mocrofilaments, and intermediate filaments. Microtubules radiate out from the entrosome and shape and support the cell, guide the ...
Unit 2
... 12. Describe probable functions of the cytoskeleton. The cytoskeleton provides support and functions in cell motility. The cytoskeleton is constructed from microtubules, mocrofilaments, and intermediate filaments. Microtubules radiate out from the entrosome and shape and support the cell, guide the ...
... 12. Describe probable functions of the cytoskeleton. The cytoskeleton provides support and functions in cell motility. The cytoskeleton is constructed from microtubules, mocrofilaments, and intermediate filaments. Microtubules radiate out from the entrosome and shape and support the cell, guide the ...
Intercourse Between Cell Wall and Cytoplasm Exemplified by
... certain phenylglycosides, termed Yariv reagents after their discoverer (Yariv et al., 1962). Those containing β-d-glucose or β-d-galactose bind arabinogalactan proteins with high affinity and will be referred to here as active Yariv, whereas phenylglycosides containing β-d-mannose or α-d-glucose bin ...
... certain phenylglycosides, termed Yariv reagents after their discoverer (Yariv et al., 1962). Those containing β-d-glucose or β-d-galactose bind arabinogalactan proteins with high affinity and will be referred to here as active Yariv, whereas phenylglycosides containing β-d-mannose or α-d-glucose bin ...
Outer dense fibre protein 2 (ODF2) is a self
... The ODFs are composed of at least 14 polypeptides (Vera et al., 1984; Oko, 1988; Petersen et al., 1999) of which only a few have been identified. ODF2 proteins consist of about 590 amino acids with a deduced molecular mass of about 70 kDa (Brohmann et al., 1997; Hoyer-Fender et al., 1998; Petersen e ...
... The ODFs are composed of at least 14 polypeptides (Vera et al., 1984; Oko, 1988; Petersen et al., 1999) of which only a few have been identified. ODF2 proteins consist of about 590 amino acids with a deduced molecular mass of about 70 kDa (Brohmann et al., 1997; Hoyer-Fender et al., 1998; Petersen e ...
Organelles PowerPoint
... • Location: inside nucleus: Coils into chromosomes during cell division • Function: Uncoiled DNA (genetic info.) ...
... • Location: inside nucleus: Coils into chromosomes during cell division • Function: Uncoiled DNA (genetic info.) ...
The Cell Cycle Control System
... Cytokinesis: A Closer Look • In animal cells, cytokinesis occurs by a process known as cleavage, forming a cleavage ...
... Cytokinesis: A Closer Look • In animal cells, cytokinesis occurs by a process known as cleavage, forming a cleavage ...
AP Biology
... Describe techniques used to study cell structure and function. Distinguish between magnification and resolving power. Describe the principles, advantages, and limitations of the light microscope, transmission electron microscope and the scanning light electron microscope. Describe cell fract ...
... Describe techniques used to study cell structure and function. Distinguish between magnification and resolving power. Describe the principles, advantages, and limitations of the light microscope, transmission electron microscope and the scanning light electron microscope. Describe cell fract ...
Making parallel lines meet
... with each (or possibly each pair) synthesizing a glucose chain. However, we know neither how CESA proteins are organized within a rosette nor what other proteins, if any, are also components of the complex, although sucrose synthase is likely.5 Knowledge about cellulose synthesis has recently been e ...
... with each (or possibly each pair) synthesizing a glucose chain. However, we know neither how CESA proteins are organized within a rosette nor what other proteins, if any, are also components of the complex, although sucrose synthase is likely.5 Knowledge about cellulose synthesis has recently been e ...
Slow axonal transport and the genesis of neuronal morphology
... Work on mitotic extracts has shown that it is also possible for cytoplasmic dynein to move microtubules relative to other microtubules (Heald et al., 1997). If this holds true in the axon as well, such forces could cause a microtubule to move either anterogradely or retrogradely, depending on which ...
... Work on mitotic extracts has shown that it is also possible for cytoplasmic dynein to move microtubules relative to other microtubules (Heald et al., 1997). If this holds true in the axon as well, such forces could cause a microtubule to move either anterogradely or retrogradely, depending on which ...
the Cytoskeleton in Plant Development1
... reported in Arabidopsis (Mitsui et at., 1993182]). Recently, a kinesin-like caimodulin-binding protein (KCBP) has been isolated fromArabidopsis (Reddyet at., 19961101]). So far, it is the only ...
... reported in Arabidopsis (Mitsui et at., 1993182]). Recently, a kinesin-like caimodulin-binding protein (KCBP) has been isolated fromArabidopsis (Reddyet at., 19961101]). So far, it is the only ...
CHAPTER 6 A TOUR OF THE CELL
... In cilia and flagella motor proteins pull components of the cytoskeleton past each other. This is also true in muscle cells. Motor protein molecules also carry vesicles or organelles to various destinations along “monorails’ provided by the cytoskeleton. Interactions of motor proteins and the cytosk ...
... In cilia and flagella motor proteins pull components of the cytoskeleton past each other. This is also true in muscle cells. Motor protein molecules also carry vesicles or organelles to various destinations along “monorails’ provided by the cytoskeleton. Interactions of motor proteins and the cytosk ...
The Distribution and Morphology Alterations of Microfilaments and
... and microfilament distribution abnormalities in maize root-cap cells [23]. Lei et al. also found that microfilament systems would gather into bundles or take on fragmentary when rice root-cap cells had been treated with bacterial blight toxin [24]. Ren et al. researched the effects of nitrogen ion i ...
... and microfilament distribution abnormalities in maize root-cap cells [23]. Lei et al. also found that microfilament systems would gather into bundles or take on fragmentary when rice root-cap cells had been treated with bacterial blight toxin [24]. Ren et al. researched the effects of nitrogen ion i ...
Nuclear -Tubulin during Acentriolar Plant Mitosis
... 1998). Current models of spindle formation in the absence of centrioles are based on chromatin-mediated microtubule organization and the ability of microtubule-associated molecular motors to focus microtubules into polar arrays (Heald et al., 1996, 1997; Karpen and Endow, 1998). In plant meiocytes, ...
... 1998). Current models of spindle formation in the absence of centrioles are based on chromatin-mediated microtubule organization and the ability of microtubule-associated molecular motors to focus microtubules into polar arrays (Heald et al., 1996, 1997; Karpen and Endow, 1998). In plant meiocytes, ...
L2 Magnification and cell components
... arrangement of: 9 outer and 1 central microtubules, 9 outer and 2 central microtubules 11 outer and 2 central microtubules, 11 outer and 4 central microtubules ...
... arrangement of: 9 outer and 1 central microtubules, 9 outer and 2 central microtubules 11 outer and 2 central microtubules, 11 outer and 4 central microtubules ...
Microtubules and the Evolution of Mitosis
... It began with the striking news that FtsZ, a protein essential for the fission of bacterial cells, is the prokaryotic ancestor of tubulin (Löwe and Amos 1998). It was later shown that MreB, a bacterial protein with homology to actin, is required for the maintenance of cell polarity during asymmetric ...
... It began with the striking news that FtsZ, a protein essential for the fission of bacterial cells, is the prokaryotic ancestor of tubulin (Löwe and Amos 1998). It was later shown that MreB, a bacterial protein with homology to actin, is required for the maintenance of cell polarity during asymmetric ...
the role of unconventional myosins in plants
... that myosin XIK had the strongest influence on organelles dynamics. Later it was confirmed that the tail of myosin XIK was able to stop the movement of post Golgi vesicles, the vacuole dynamics and cytoplasmic streaming itself. Surprisingly, none of the myosins colocalized with any of the organelles ...
... that myosin XIK had the strongest influence on organelles dynamics. Later it was confirmed that the tail of myosin XIK was able to stop the movement of post Golgi vesicles, the vacuole dynamics and cytoplasmic streaming itself. Surprisingly, none of the myosins colocalized with any of the organelles ...
Microtubule
Microtubules (micro- + tube + -ule) are a component of the cytoskeleton, found throughout the cytoplasm. These tubular polymers of tubulin can grow as long as 50 micrometres and are highly dynamic. The outer diameter of a microtubule is about 24 nm while the inner diameter is about 12 nm. They are found in eukaryotic cells and are formed by the polymerization of a dimer of two globular proteins, alpha and beta tubulin.Microtubules are very important in a number of cellular processes. They are involved in maintaining the structure of the cell and, together with microfilaments and intermediate filaments, they form the cytoskeleton. They also make up the internal structure of cilia and flagella.They provide platforms for intracellular transport and are involved in a variety of cellular processes, including the movement of secretory vesicles, organelles, and intracellular macromolecular assemblies (see entries for dynein and kinesin). They are also involved in chromosome separation (mitosis and meiosis), and are the major constituents of mitotic spindles, which are used to pull apart eukaryotic chromosomes.Microtubules are nucleated and organized by microtubule organizing centers (MTOCs), such as the centrosome found in the center of many animal cells or the basal bodies found in cilia and flagella, or the spindle pole bodies found in fungi.There are many proteins that bind to microtubules, including the motor proteins kinesin and dynein, severing proteins like katanin, and other proteins important for regulating microtubule dynamics.