PDF - Eleanor Maine Research Lab
... mitotic cell division and maintenance of stem cell fate. Different stem cell types display distinct patterns of self-renewal and differentiation. For example, hematopoetic stem cells divide infrequently compared with ES cells (Orford and Scadden, 2008). Different modes of stem cell proliferation may ...
... mitotic cell division and maintenance of stem cell fate. Different stem cell types display distinct patterns of self-renewal and differentiation. For example, hematopoetic stem cells divide infrequently compared with ES cells (Orford and Scadden, 2008). Different modes of stem cell proliferation may ...
Planctomyces stranskae - International Journal of Systematic and
... Description of Planctornyces guttaeformis (ex Hortobagyi 1965) sp. nov., nom. rev. Planctomyces guttaeformis [gutt. ae.form’is. L. gen. noun gutta(e) a drop; L. suffix -formis in the form or shape of; M.L. adj. guttaeformis drop shaped]. Cells are relatively large (2.9 to 3.0 pm in length, 1.15 to 1 ...
... Description of Planctornyces guttaeformis (ex Hortobagyi 1965) sp. nov., nom. rev. Planctomyces guttaeformis [gutt. ae.form’is. L. gen. noun gutta(e) a drop; L. suffix -formis in the form or shape of; M.L. adj. guttaeformis drop shaped]. Cells are relatively large (2.9 to 3.0 pm in length, 1.15 to 1 ...
Cell Biology - Educational Services
... In 1858, after using microscopes much better than Hooke’s first microscope, Rudolf Virchow developed the hypothesis that cells only come from other cells. For example, bacteria, which are single-celled organisms, divide in half (after they grow some) to make new bacteria. In the same way, your body ...
... In 1858, after using microscopes much better than Hooke’s first microscope, Rudolf Virchow developed the hypothesis that cells only come from other cells. For example, bacteria, which are single-celled organisms, divide in half (after they grow some) to make new bacteria. In the same way, your body ...
Lineage Commitment During T cell Development
... How would you test the importance of one of the transcription factors (for instance, TCF-1) that is upregulated during early Notch signaling for T cell lineage development? ...
... How would you test the importance of one of the transcription factors (for instance, TCF-1) that is upregulated during early Notch signaling for T cell lineage development? ...
POM-POM2/CELLULOSE SYNTHASE
... proteins partake in the CESA complex, their functions appear crucial for production of the microfibrils. However, only CELLULOSE SYNTHASE INTERACTING1 (CSI1) has so far been identified to interact directly with the primary wall CESAs (Gu et al., 2010). The interaction was identified through a yeast ...
... proteins partake in the CESA complex, their functions appear crucial for production of the microfibrils. However, only CELLULOSE SYNTHASE INTERACTING1 (CSI1) has so far been identified to interact directly with the primary wall CESAs (Gu et al., 2010). The interaction was identified through a yeast ...
Text S1.
... same spatial frame to discharge together in time and separate in time from discharge that represents information within a different spatial frame. We also showed that in open field environments the similarity of spatial discharge is also related to temporal coordination – the more similar the firing ...
... same spatial frame to discharge together in time and separate in time from discharge that represents information within a different spatial frame. We also showed that in open field environments the similarity of spatial discharge is also related to temporal coordination – the more similar the firing ...
The pollen wall and tapetum are altered in the
... to the anther sac center during the monocyte period. At the same time, the tapetum degenerated as the microspores aborted, resulting in pollendeficient anthers. As a result, the locules collapsed and the anthers shriveled. The callose was degraded in the pollen walls; abnormal deposits of electroden ...
... to the anther sac center during the monocyte period. At the same time, the tapetum degenerated as the microspores aborted, resulting in pollendeficient anthers. As a result, the locules collapsed and the anthers shriveled. The callose was degraded in the pollen walls; abnormal deposits of electroden ...
Regeneration in plants and animals: dedifferentiation
... Analogous between animal and plant regeneration is the intermediate structure: plant callus and animal blastema, a zone of progenitor cells formed at the wound site during regeneration [15,20,21]. Because of its ability to produce various cell types and the lack of characteristic structures, both ti ...
... Analogous between animal and plant regeneration is the intermediate structure: plant callus and animal blastema, a zone of progenitor cells formed at the wound site during regeneration [15,20,21]. Because of its ability to produce various cell types and the lack of characteristic structures, both ti ...
Cell Cycle-specific Effects of Tumor Necrosis
... death in the culture. Shortly thereafter, the cytolytic effect be comes apparent; extensive cell lysis can be detected after 7 hr of exposure to TNF. After 24 hr nearly all cells are lysed. Results of experiments in which the effects of TNF on the kinetics of cell progression through various phases ...
... death in the culture. Shortly thereafter, the cytolytic effect be comes apparent; extensive cell lysis can be detected after 7 hr of exposure to TNF. After 24 hr nearly all cells are lysed. Results of experiments in which the effects of TNF on the kinetics of cell progression through various phases ...
Cell Structure/Function
... 5. Which of the following is present in a typical plant cell but not in an animal cell? Your Answer: Correct Answer: 6. Which statement BEST describes the cell membrane in a typical plant cell? The membrane Your Answer: Correct Answer: 7. Which organelles are most directly involved in transpo ...
... 5. Which of the following is present in a typical plant cell but not in an animal cell? Your Answer: Correct Answer: 6. Which statement BEST describes the cell membrane in a typical plant cell? The membrane Your Answer: Correct Answer: 7. Which organelles are most directly involved in transpo ...
to view Dr. Braverman`s Intralipid PowerPoint Presentation
... Beyond NK Cells - Other Immunological Targets of Intralipid • Other immunological abnormalities are present in recurrent miscarriage patients • Reproductive autoimmune failure syndrome – “In analogy, to animal models, immunologic reproductive failure in humans, may therefore not be the consequence ...
... Beyond NK Cells - Other Immunological Targets of Intralipid • Other immunological abnormalities are present in recurrent miscarriage patients • Reproductive autoimmune failure syndrome – “In analogy, to animal models, immunologic reproductive failure in humans, may therefore not be the consequence ...
Bio 103 Lecture - Origin and Evolution of Micr
... and to what activity is the difference attributed? • What was the temperature (general) of the early earth, what caused that temperature, what was the temperature around the time life appeared, what caused the change in temperature? Prokaryotes have inhabited the earth for billions of years • when w ...
... and to what activity is the difference attributed? • What was the temperature (general) of the early earth, what caused that temperature, what was the temperature around the time life appeared, what caused the change in temperature? Prokaryotes have inhabited the earth for billions of years • when w ...
Shroom3-mediated recruitment of Rho kinases to the apical cell
... During embryonic development, epithelial cell layers undergo a variety of dynamic morphological changes, such as folding, invagination and elongation, to generate the tissues with complex architecture. At the cellular level, these processes involve cell intercalation and migration, as well as the ap ...
... During embryonic development, epithelial cell layers undergo a variety of dynamic morphological changes, such as folding, invagination and elongation, to generate the tissues with complex architecture. At the cellular level, these processes involve cell intercalation and migration, as well as the ap ...
further characterization of the f1
... cyclic 3',5'-adenosine monophosphate (cAMP)-dependent phosphokinase, differs from KII by several criteria. KII is mol wt 90,000, cAMP independent, rapidly turned over in vivo, low K. for ATP, and phosphorylates FI histone at several unique sites. Comparative examination of metaphase-arrested (M) and ...
... cyclic 3',5'-adenosine monophosphate (cAMP)-dependent phosphokinase, differs from KII by several criteria. KII is mol wt 90,000, cAMP independent, rapidly turned over in vivo, low K. for ATP, and phosphorylates FI histone at several unique sites. Comparative examination of metaphase-arrested (M) and ...
Shroom3-mediated recruitment of Rho kinases to the apical cell
... During embryonic development, epithelial cell layers undergo a variety of dynamic morphological changes, such as folding, invagination and elongation, to generate the tissues with complex architecture. At the cellular level, these processes involve cell intercalation and migration, as well as the ap ...
... During embryonic development, epithelial cell layers undergo a variety of dynamic morphological changes, such as folding, invagination and elongation, to generate the tissues with complex architecture. At the cellular level, these processes involve cell intercalation and migration, as well as the ap ...
Clear Cell Tumors of the Head and Neck: An
... is due to their origin from the dental lamina.4,10 Most of the salivary gland tumors contain glycogen in their cytoplasm causing cytoplasmic clearing. Mucoepidermoid carcinoma contains mucins with glycogen which contributes to the clearing.11 The clear cells in acinic cell adenocarcinoma represent f ...
... is due to their origin from the dental lamina.4,10 Most of the salivary gland tumors contain glycogen in their cytoplasm causing cytoplasmic clearing. Mucoepidermoid carcinoma contains mucins with glycogen which contributes to the clearing.11 The clear cells in acinic cell adenocarcinoma represent f ...
The Distribution of Polycomb-Group Proteins During Cell Division
... PcG binding, supporting the assumption that most PcG binding loci are sites of repressive complexes. Although the PcG proteins maintain tissue-specific repression for up to 14 cell generations, the proteins studied here visibly dissociate from the chromatin during mitosis, and disperse into the cyto ...
... PcG binding, supporting the assumption that most PcG binding loci are sites of repressive complexes. Although the PcG proteins maintain tissue-specific repression for up to 14 cell generations, the proteins studied here visibly dissociate from the chromatin during mitosis, and disperse into the cyto ...
Chapter 3—Cells
... How are archaea different from bacteria? Archaea have different ribosomes. c. Archaea have cell membranes. Archaea have only one cell. d. Archaea have RNA, not DNA. ...
... How are archaea different from bacteria? Archaea have different ribosomes. c. Archaea have cell membranes. Archaea have only one cell. d. Archaea have RNA, not DNA. ...
A CDC45 Homolog in Arabidopsis Is Essential for Meiosis, as
... that AtCDC45 transcripts may be cell cycle regulated. Therefore, RNA samples from an aphidicolin-synchronized Arabidopsis cell suspension culture were used in reverse transcriptase– mediated (RT) PCR to determine the cell cycle regulation of AtCDC45. The results are shown in Figure 1. AtCDC45 transc ...
... that AtCDC45 transcripts may be cell cycle regulated. Therefore, RNA samples from an aphidicolin-synchronized Arabidopsis cell suspension culture were used in reverse transcriptase– mediated (RT) PCR to determine the cell cycle regulation of AtCDC45. The results are shown in Figure 1. AtCDC45 transc ...
S-layer and cytoplasmic membrane – exceptions from the typical
... no organic substrates. In those habitats, various species of hyperthermophilic or more generally extremophilic archaea were found and described. Therefore, the general cell plan of the majority of these extremophilic archaea and especially their cell wall architecture might represent the most basic ...
... no organic substrates. In those habitats, various species of hyperthermophilic or more generally extremophilic archaea were found and described. Therefore, the general cell plan of the majority of these extremophilic archaea and especially their cell wall architecture might represent the most basic ...
Anemia - med.muni
... premature destruction of red cells, retention in the body of iron and other products of hemoglobin destruction, and an increase in erythropoiesis to compensate for the loss of red cells. • Because of the red blood cell's shortened life span, the bone marrow usually is hyperactive, resulting in an in ...
... premature destruction of red cells, retention in the body of iron and other products of hemoglobin destruction, and an increase in erythropoiesis to compensate for the loss of red cells. • Because of the red blood cell's shortened life span, the bone marrow usually is hyperactive, resulting in an in ...
Macromolecule Lecture Notes
... Cellulose, which plant fiber, cannot be digested by human beings. Cellulose passes through the digestive tract without being absorbed into the body - this is the fiber we need to keep our intestines healthy. Complex carbohydrates are long chains of simple sugar units bonded together. Zoom out into t ...
... Cellulose, which plant fiber, cannot be digested by human beings. Cellulose passes through the digestive tract without being absorbed into the body - this is the fiber we need to keep our intestines healthy. Complex carbohydrates are long chains of simple sugar units bonded together. Zoom out into t ...
Plant Thin Cell Layers: Challenging the Concept
... Unlike plant science, a tissue in medical science need not form a layer but we will concern ourselves with plants here. This implies two things: those cells that form a simple tissue such as the epidermis, parenchyma, sclerenchyma or collenchyma are either similar in structure or their inherent natu ...
... Unlike plant science, a tissue in medical science need not form a layer but we will concern ourselves with plants here. This implies two things: those cells that form a simple tissue such as the epidermis, parenchyma, sclerenchyma or collenchyma are either similar in structure or their inherent natu ...
Mitosis
Mitosis is a part of the cell cycle in which chromosomes in a cell nucleus are separated into two identical sets of chromosomes, each in its own nucleus. In general, mitosis (division of the nucleus) is often followed by cytokinesis, which divides the cytoplasm, organelles and cell membrane into two new cells containing roughly equal shares of these cellular components. Mitosis and cytokinesis together define the mitotic (M) phase of an animal cell cycle—the division of the mother cell into two daughter cells, genetically identical to each other and to their parent cell.The process of mitosis is divided into stages corresponding to the completion of one set of activities and the start of the next. These stages are prophase, prometaphase, metaphase, anaphase, and telophase. During mitosis, the chromosomes, which have already duplicated, condense and attach to fibers that pull one copy of each chromosome to opposite sides of the cell. The result is two genetically identical daughter nuclei. The cell may then divide by cytokinesis to produce two daughter cells. Producing three or more daughter cells instead of normal two is a mitotic error called tripolar mitosis or multipolar mitosis (direct cell triplication / multiplication). Other errors during mitosis can induce apoptosis (programmed cell death) or cause mutations. Certain types of cancer can arise from such mutations.Mitosis occurs only in eukaryotic cells and the process varies in different organisms. For example, animals undergo an ""open"" mitosis, where the nuclear envelope breaks down before the chromosomes separate, while fungi undergo a ""closed"" mitosis, where chromosomes divide within an intact cell nucleus. Furthermore, most animal cells undergo a shape change, known as mitotic cell rounding, to adopt a near spherical morphology at the start of mitosis. Prokaryotic cells, which lack a nucleus, divide by a different process called binary fission.