Gametogenesis: Conversion of Germ Cells Into Male and Female
... significantly increased our knowledge of embryology and its relevance. Because birth defects are the leading cause of infant mortality and a major contributor to disabilities, and because new prevention strategies have been developed, understanding the principles of embryology is important for health ...
... significantly increased our knowledge of embryology and its relevance. Because birth defects are the leading cause of infant mortality and a major contributor to disabilities, and because new prevention strategies have been developed, understanding the principles of embryology is important for health ...
LIEDER Prepared Microscope Slides Multimedia
... LIEDER prepared microscope slides are made in our laboratories under scientific control. They are the product of long experience in all spheres of preparation techniques. Microtome sections are cut by highly skilled staff, cutting technique and thickness of the sections are adjusted to the objects. ...
... LIEDER prepared microscope slides are made in our laboratories under scientific control. They are the product of long experience in all spheres of preparation techniques. Microtome sections are cut by highly skilled staff, cutting technique and thickness of the sections are adjusted to the objects. ...
science - Christian Schools International
... mysteries of the universe, computer scientists have created machines that seemingly border on human intelligence. The possibilities of science seem endless. Because science is a human activity, however, the knowledge that it can help us gain is limited. Secular culture tends to reduce the world to t ...
... mysteries of the universe, computer scientists have created machines that seemingly border on human intelligence. The possibilities of science seem endless. Because science is a human activity, however, the knowledge that it can help us gain is limited. Secular culture tends to reduce the world to t ...
Animal Evolution - Amazon Web Services
... similarity between organisms. The term ‘homology’ had already been in use for some time, and Owen (1848) had used it in a practical attempt to create a common anatomical nomenclature for the vertebrates, but it was Darwin’s ideas about evolution that gave the word its present meaning and importance: ...
... similarity between organisms. The term ‘homology’ had already been in use for some time, and Owen (1848) had used it in a practical attempt to create a common anatomical nomenclature for the vertebrates, but it was Darwin’s ideas about evolution that gave the word its present meaning and importance: ...
Ch 4
... – found wherever areolar connective tissue is located. – reduces heat loss through the skin, serves as an energy reserve, supports, protects, and generates considerable heat to help maintain proper body temperature in ...
... – found wherever areolar connective tissue is located. – reduces heat loss through the skin, serves as an energy reserve, supports, protects, and generates considerable heat to help maintain proper body temperature in ...
- studijní a informační středisko vfu brno
... the first meiotic division and become primary oocytes which are diploid (period of growth). They become arrested at the diplotene phase. A primary oocyte surrounded by a single layer of squamous follicular cells is known as a primordial follicle. The primordial follicles present the pool of quiescen ...
... the first meiotic division and become primary oocytes which are diploid (period of growth). They become arrested at the diplotene phase. A primary oocyte surrounded by a single layer of squamous follicular cells is known as a primordial follicle. The primordial follicles present the pool of quiescen ...
3 Systems working together
... and understanding of the structure of living things and how they work. Investigations provide us with more information about chemical processes that occur in cells and keep living things alive. Scientists from different fields study the ingredients for life in different ways. Biologists may be inter ...
... and understanding of the structure of living things and how they work. Investigations provide us with more information about chemical processes that occur in cells and keep living things alive. Scientists from different fields study the ingredients for life in different ways. Biologists may be inter ...
Journal of Biotechnology Rapid and highly efficient mammalian cell
... ranging from 4 to 36% for each individual target (Sakuma et al., 2014). In general, the efficiency of editing multiple genes in the human genome using plasmid-based delivery methods remains relatively low which subsequently increases the workload for downstream clonal isolation. In this study, we dev ...
... ranging from 4 to 36% for each individual target (Sakuma et al., 2014). In general, the efficiency of editing multiple genes in the human genome using plasmid-based delivery methods remains relatively low which subsequently increases the workload for downstream clonal isolation. In this study, we dev ...
The journey of developing hematopoietic stem cells
... have not been successful, although differentiated hematopoietic cells can be generated with relative ease (Keller, 2005; Kyba and Daley, 2003; Wang et al., 2005a). So far, robust and sustained multi-lineage reconstitution of adult hematopoiesis from mouse ES cell-derived hematopoietic precursors has ...
... have not been successful, although differentiated hematopoietic cells can be generated with relative ease (Keller, 2005; Kyba and Daley, 2003; Wang et al., 2005a). So far, robust and sustained multi-lineage reconstitution of adult hematopoiesis from mouse ES cell-derived hematopoietic precursors has ...
animal phyla - Sakshieducation.com
... Which of the following is not a characteristic feature of phylum Ctenophora? a) They are exclusively marine, radially symmetrical animals b) They move by cilia, which join together to form eight meridian comb plates c) When the tentacles are present they are two in number and contain cnidoblasts d) ...
... Which of the following is not a characteristic feature of phylum Ctenophora? a) They are exclusively marine, radially symmetrical animals b) They move by cilia, which join together to form eight meridian comb plates c) When the tentacles are present they are two in number and contain cnidoblasts d) ...
Histology and Embryology Self Test Book
... Ⅰ. Definitions 1. endothelium The simple squamous epithelium lining the inner surfaces of the heart, blood vessels and lymphatic vessels is termed endothelium. 2. mesothelium The simple squamous epithelium covering the outer surfaces of the pleura, peritoneum and pericardium is termed mesothelium. 3 ...
... Ⅰ. Definitions 1. endothelium The simple squamous epithelium lining the inner surfaces of the heart, blood vessels and lymphatic vessels is termed endothelium. 2. mesothelium The simple squamous epithelium covering the outer surfaces of the pleura, peritoneum and pericardium is termed mesothelium. 3 ...
biology final
... understand that bacteria, plants and some animals can reproduce asexually to form clones (individuals with identical genes) understand that any differences between clones are likely to be due only to environmental factors understand that clones of plants occur naturally when plants produce bulbs or ...
... understand that bacteria, plants and some animals can reproduce asexually to form clones (individuals with identical genes) understand that any differences between clones are likely to be due only to environmental factors understand that clones of plants occur naturally when plants produce bulbs or ...
File - THE ISLAM SHOW
... The functioning of a person's hormonal system generally begins when he is still in his mother's womb and continues right up until his death. Reproductive glands start to function as a result of the effect of hormones too. But unlike other parts of the body, the secretion of hormones relevant to the ...
... The functioning of a person's hormonal system generally begins when he is still in his mother's womb and continues right up until his death. Reproductive glands start to function as a result of the effect of hormones too. But unlike other parts of the body, the secretion of hormones relevant to the ...
Manual: QuikChange® II XL Site
... characterizing the dynamic, complex relationships between protein structure and function, for studying gene expression elements, and for carrying out vector modification. Several approaches to this technique have been published, but these methods generally require single-stranded DNA (ssDNA) as the ...
... characterizing the dynamic, complex relationships between protein structure and function, for studying gene expression elements, and for carrying out vector modification. Several approaches to this technique have been published, but these methods generally require single-stranded DNA (ssDNA) as the ...
Malaysian Guidelines for Stem Cell Research and Therapy
... tract plus various accessory organs like the lungs and liver. Much of the proposed research on stem cells centers upon the early human embryo. ...
... tract plus various accessory organs like the lungs and liver. Much of the proposed research on stem cells centers upon the early human embryo. ...
Ultrastructure of the body cavities in phylactolaemata Bryozoa
... thick ECM via hemidesmosomes. On each lateral side one peritoneal cell is located. These do not reside entirely on the ECM, but cover each one subperitoneal cell, which differs from the former in its cytoplasmic composition. The cytoplasm is electron-lucent, without conspicuous amounts of ribosomes ...
... thick ECM via hemidesmosomes. On each lateral side one peritoneal cell is located. These do not reside entirely on the ECM, but cover each one subperitoneal cell, which differs from the former in its cytoplasmic composition. The cytoplasm is electron-lucent, without conspicuous amounts of ribosomes ...
Unit 2 Key areas
... 11. name two effectors. 12. describe an experiment to test my reflexes. 13. define what an endocrine gland is. 14. state the function and give examples of endocrine glands. 15. define the term hormone. 16. describe the function of hormones in the body. ...
... 11. name two effectors. 12. describe an experiment to test my reflexes. 13. define what an endocrine gland is. 14. state the function and give examples of endocrine glands. 15. define the term hormone. 16. describe the function of hormones in the body. ...
bluebird bio, Inc. - corporate
... Homology directed transgene integration combines nuclease-mediated gene disruption with site-specific integration of novel genetic material. Using bluebird bio’s proprietary gene editing technology, megaTALs, bluebird scientists demonstrated that this can be efficiently accomplished in primary hu ...
... Homology directed transgene integration combines nuclease-mediated gene disruption with site-specific integration of novel genetic material. Using bluebird bio’s proprietary gene editing technology, megaTALs, bluebird scientists demonstrated that this can be efficiently accomplished in primary hu ...
Functions of hormones
... Ciliary body The ciliary body is a thickened anterior portion of the tunica vasculosa, located between iris and choroid. The anterior third of the ciliary body has ciliary processes. The layers of the ciliary body are similar to those of the iris, consisting of a stroma and an epithelium. The stroma ...
... Ciliary body The ciliary body is a thickened anterior portion of the tunica vasculosa, located between iris and choroid. The anterior third of the ciliary body has ciliary processes. The layers of the ciliary body are similar to those of the iris, consisting of a stroma and an epithelium. The stroma ...
- Wiley Online Library
... interacting partner [18]. c-Myc is an oncogene encoding a transcription factor that is important for stem cell maintenance [19] and induced pluripotency [20]. Third, Zfp281 has been identified and validated as a top candidate target of the skin microRNA203, which promotes differentiation and represse ...
... interacting partner [18]. c-Myc is an oncogene encoding a transcription factor that is important for stem cell maintenance [19] and induced pluripotency [20]. Third, Zfp281 has been identified and validated as a top candidate target of the skin microRNA203, which promotes differentiation and represse ...
Animal Histology BIO 428
... SIMPLE CUBOIDAL EPITHELIUM (Fig. 5.2, 16.17, 16.20, 16.21, 17.6-17.10) Kidney Observe cells forming the numerous tubules in the kidney. Note the rounded nucleus in each cell. Identify the location of the basement membrane. ...
... SIMPLE CUBOIDAL EPITHELIUM (Fig. 5.2, 16.17, 16.20, 16.21, 17.6-17.10) Kidney Observe cells forming the numerous tubules in the kidney. Note the rounded nucleus in each cell. Identify the location of the basement membrane. ...
AQA GCSE (9-1)
... These give an overview of all the resources needed for a lesson. Every lesson has an associated differentiated worksheet to support written work. Practical sheets are provided to give support for planning, carrying out and analysing practical work. Technician’s notes are provided to explain the mate ...
... These give an overview of all the resources needed for a lesson. Every lesson has an associated differentiated worksheet to support written work. Practical sheets are provided to give support for planning, carrying out and analysing practical work. Technician’s notes are provided to explain the mate ...
Using food and controlling growth - Delivery guide
... The video clip by cancer quest which is 11 minutes long provides detailed documentary on the formation of cancer. This provides a great opportunity for stretch and challenge of learners. The video clip makes links to a number of different areas of the specification incorporating organelles, membrane ...
... The video clip by cancer quest which is 11 minutes long provides detailed documentary on the formation of cancer. This provides a great opportunity for stretch and challenge of learners. The video clip makes links to a number of different areas of the specification incorporating organelles, membrane ...
Morphology of the air‐breathing stomach of the catfish Hypostomus
... observed within the Golgi apparatus. In the vicinity of large dense bodies, small ones were observed. Some dense bodies had a corrugated shape, which indicates their growth by a process of aggregation of small ones. Among electron-dense bodies there were some with amorphous, homogenous, electron-den ...
... observed within the Golgi apparatus. In the vicinity of large dense bodies, small ones were observed. Some dense bodies had a corrugated shape, which indicates their growth by a process of aggregation of small ones. Among electron-dense bodies there were some with amorphous, homogenous, electron-den ...
ABSTRACT Title of Document:
... ES-like cell lines from livestock and other laboratory species. Despite many efforts to derive ESCs from other mammalian species, ESCs that retain their capacity for germline transmission have only been verified in the mouse. Promising results with hESCs and adult stem cells have nurtured hope for t ...
... ES-like cell lines from livestock and other laboratory species. Despite many efforts to derive ESCs from other mammalian species, ESCs that retain their capacity for germline transmission have only been verified in the mouse. Promising results with hESCs and adult stem cells have nurtured hope for t ...
Induced pluripotent stem cell
Induced pluripotent stem cells (also known as iPS cells or iPSCs) are a type of pluripotent stem cell that can be generated directly from adult cells. The iPSC technology was pioneered by Shinya Yamanaka’s lab in Kyoto, Japan, who showed in 2006 that the introduction of four specific genes encoding transcription factors could convert adult cells into pluripotent stem cells. He was awarded the 2012 Nobel Prize along with Sir John Gurdon ""for the discovery that mature cells can be reprogrammed to become pluripotent."" Pluripotent stem cells hold great promise in the field of regenerative medicine. Because they can propagate indefinitely, as well as give rise to every other cell type in the body (such as neurons, heart, pancreatic, and liver cells), they represent a single source of cells that could be used to replace those lost to damage or disease.The most well-known type of pluripotent stem cell is the embryonic stem cell. However, since the generation of embryonic stem cells involves destruction (or at least manipulation) of the pre-implantation stage embryo, there has been much controversy surrounding their use. Further, because embryonic stem cells can only be derived from embryos, it has so far not been feasible to create patient-matched embryonic stem cell lines.Since iPSCs can be derived directly from adult tissues, they not only bypass the need for embryos, but can be made in a patient-matched manner, which means that each individual could have their own pluripotent stem cell line. These unlimited supplies of autologous cells could be used to generate transplants without the risk of immune rejection. While the iPSC technology has not yet advanced to a stage where therapeutic transplants have been deemed safe, iPSCs are readily being used in personalized drug discovery efforts and understanding the patient-specific basis of disease.Depending on the methods used, reprogramming of adult cells to obtain iPSCs may pose significant risks that could limit their use in humans. For example, if viruses are used to genomically alter the cells, the expression of oncogenes (cancer-causing genes) may potentially be triggered. In February 2008, scientists announced the discovery of a technique that could remove oncogenes after the induction of pluripotency, thereby increasing the potential use of iPS cells in human diseases. In April 2009, it was demonstrated that generation of iPS cells is possible without any genetic alteration of the adult cell: a repeated treatment of the cells with certain proteins channeled into the cells via poly-arginine anchors was sufficient to induce pluripotency. The acronym given for those iPSCs is piPSCs (protein-induced pluripotent stem cells).