Products related to Chromosomes:
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Evolution, Composition and Regulation of Supernumerary B Chromosomes
Supernumerary B chromosomes (Bs) are dispensable genetic elements found in thousands of species of plants and animals, and some fungi. Since their discovery more than a century ago, they have been a source of puzzlement, as they only occur in some members of a population and are absent from others. When they do occur, they are often harmful, and in the absence of “selfishness”, based on mechanisms of mitotic and meiotic drive, there appears to be no obvious reason for their existence. Cytogeneticists have long wrestled with questions about the biological existence of these enigmatic elements, including their lack of any adaptive properties, apparent absence of functional genes, their origin, sequence organization, and co-evolution as nuclear parasites. Emerging new technologies are now enabling researchers to step up a gear, to look enthusiastically beyond the previous limits of the horizon, and to uncover the secrets of these “silent” chromosomes. This book provides a comprehensive guide to theoretical advancements in the field of B chromosome research in both animal and plant systems.
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Abnormal Chromosomes : The Past, Present, and Future of Cancer Cytogenetics
Explore the past, present, and future of cancer cytogeneticsIn Abnormal Chromosomes: The Past, Present, and Future of Cancer Cytogenetics, globally renowned researchers Drs.Sverre Heim and Felix Mitelman deliver a state-of-the-art review of how cancer cytogenetic analyses have contributed to an improved understanding of tumorigenesis as well as to the diagnosis and treatment of cancer patients.The book also discusses how cytogenetics – the study of chromosomes - meets, interacts with, and cross-fertilizes other investigative technologies, including molecular somatic cell genetics. The book provides an impetus to think more deeply about the role chromosomes, and their abnormalities, play in health and disease, especially in neoplastic disorders.From which origins did cytogenetics develop? How did the finding of acquired chromosomal abnormalities in cells of leukemias and solid tumors influence our understanding of cancer as a biological process?How was information of this nature put to good use in the clinical management of cancer patients?Abnormal Chromosomes: The Past, Present, and Future of Cancer Cytogenetics offers readers: A thorough introduction to ancient theories of disease, the advent of cellular pathology, and how a scientific interest in chromosomes developedComprehensive exploration of the conceptual importance of Theodor Boveri and his somatic mutation theory of cancerA detailed chronological resume of cancer cytogenetic discoveries during the 20th centuryIn-depth discussions of the role of chromosome abnormalities, oncogenes, and tumor suppressor genes in leukemias, lymphomas, and solid tumors, together with a survey of what chromosome analyses have revealed about the clonal evolution of neoplastic cell populationsA discussion of the importance of pathogenetic classifications of neoplastic diseases, the role chromosome abnormalities play in this context, and which technological breakthroughs can be expected in chromosome-oriented cancer research Abnormal Chromosomes: The Past, Present, and Future of Cancer Cytogenetics was written for everyone with a scientific or clinical interest in cancer, especially how acquired chromosome abnormalities lead to neoplastic transformation.The book teaches how cytogenetic analyses contribute to a better understanding of tumorigenesis, but also how the finding of specific chromosome aberrations can be crucial for the diagnosis, prognosis, and management of cancer patients.
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Nutrition and Supplements in Cycling
Nutrition and Supplements in Cycling provides a blueprint for all the key nutritional aspects a cyclist should consider from health to macro- and micro-nutrients, and the finer details, such as sports supplements to improve competitive performance.As a result, cyclists and coaches can use this book as a handbook to help with supporting their own (or their athletes') health and performance through evidence-based nutrition. The nutritional demands of cycling are as diverse as the number of disciplines in the sport.To address this issue, this book covers the nutritional strategies for short- and long-distance disciplines and considers the implications of training and racing in a variety of environmental conditions.The book is divided into two distinct parts that are structured around the nutrition demands and practices of cyclists and an evaluation of novel and existing supplements that are currently being used or considered by riders. This book represents a go-to resource for cyclists, performance nutritionists, coaches, and students looking for the most effective and up-to-date evidence-based nutritional strategies for enhancing cycling performance.It brings together a team of emerging and world-leading academics, along with practitioners and riders from the UCI World and Pro Tours, to provide insightful evaluations of the latest science and to translate that knowledge into practical recommendations.Finally, it presents a model of reflective practice designed to enhance the performance nutrition practitioner’s development and practices. This book is key reading for active cyclists, cycling coaches, and athletes, as well as researchers and students of sport and exercise science, nutrition, human performance, and exercise physiology.
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The Brain Injury Rehabilitation Workbook
Grounded in a holistic approach, this state-of-the-art workbook provides tools and resources for supporting clients with nonprogressive brain injury.Effective strategies are described for building skills and teaching compensatory strategies in such areas as attention, memory, executive functions, mood, and communication.Particular attention is given to facilitating the challenging process of identity change following a life-altering injury.In a large-size format for easy photocopying, the volume features 93 reproducible client handouts.Purchasers get access to a Web page where they can download and print the reproducible materials.
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Are a chromatid chromosome and two chromatid chromosomes homologous chromosomes or a set of chromosomes?
A chromatid chromosome and two chromatid chromosomes are not homologous chromosomes, but rather a set of chromosomes. Homologous chromosomes are pairs of chromosomes that contain the same genes in the same order, one from each parent. In contrast, chromatid chromosomes are duplicated copies of a single chromosome that are joined together at the centromere. Two chromatid chromosomes refer to a duplicated chromosome in preparation for cell division.
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Are chromosomes unreliable?
Chromosomes are not inherently unreliable, as they are the structures that carry our genetic information and play a crucial role in cell division and inheritance. However, errors can occur during the process of chromosome replication and segregation, leading to genetic mutations and disorders. Additionally, environmental factors and lifestyle choices can also impact the stability and integrity of chromosomes. Overall, while chromosomes are essential for the functioning of our cells and the inheritance of genetic traits, they are not immune to errors and can be influenced by various factors.
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What is the difference between single chromosomes and double chromosomes?
Single chromosomes refer to a single strand of DNA that contains genetic information. In contrast, double chromosomes refer to a pair of identical chromosomes, one from each parent, that are joined together at the centromere. Single chromosomes are found in haploid cells, such as gametes, while double chromosomes are found in diploid cells, such as somatic cells. Double chromosomes allow for genetic diversity and the exchange of genetic material through processes such as meiosis and fertilization.
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What is the difference between chromosomes, chromatids, and double chromosomes?
Chromosomes are the structures within cells that contain genetic information. They are made up of DNA and proteins. Chromatids are the two identical copies of a chromosome that are formed during the process of DNA replication. Double chromosomes, on the other hand, refer to the paired chromosomes that are formed during cell division, with each chromosome consisting of two sister chromatids. In summary, chromosomes are the overall structures containing genetic material, chromatids are the individual copies of a chromosome, and double chromosomes are the paired chromosomes formed during cell division.
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Sports Rehabilitation and Injury Prevention
This text provides a comprehensive, practical, evidence-based guide to the field.It covers each stage of the rehabilitation process from initial assessment, diagnosis and treatment, to return to pre-injury fitness and injury prevention.Presenting a holistic approach, this text also addresses the nutritional and psychological aspects of the rehabilitation process for the amateur sports enthusiast as well as elite athletes.Divided into five parts, Parts I, II and III cover screening and assessment, the pathophysiology of sports injuries and healing and the various stages of training during the rehabilitation process.Part IV covers effective clinical decision making, and Part V covers joint specific injuries and pathologies in the shoulder, elbow wrist and hand, groin and knee. Key features: Comprehensive. Covers the complete process from diagnosis and treatment to rehabilitation and prevention of injuries. Practical and relevant. Explores numerous real world case studies and sample rehabilitation programmes to show how to apply the theory in practice. Cutting Edge. Presents the latest research findings in each area to provide an authoritative guide to the field.
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Equine Injury, Therapy and Rehabilitation
Mary Bromiley's book remains essential reading for both professionals and the general riding community.This new edition builds on the huge success of the previous editions, first published in 1987.Fully updated to reflect recent technological advances in diagnostic ability, as well as the proven physiological effects of light, magnetic fields and electrical currents on body tissues.This information allows readers to both understand and make an informed choice of appropriate therapy following a diagnosed injury. The original edition was the first book on the subject and it has continued to be a bestseller. Covers a subject that is of worldwide interest. The author is recognised as a pioneer at the forefront of this type of treatment.
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Sports Injury Prevention and Rehabilitation : Integrating Medicine and Science for Performance Solutions
World-class rehabilitation of the injured athlete integrates best practice in sports medicine and physical therapy with training and conditioning techniques based on cutting-edge sports science.In this ground-breaking new book, leading sports injury and rehabilitation professionals, strength and conditioning coaches, biomechanists and sport scientists show how this integrated model works across the spectrum of athlete care.In every chapter, there is a sharp focus on the return to performance, rather than just a return to play. The book introduces evidence-based best practice in all the core areas of sports injury risk management and rehabilitation, including:performance frameworks for medical and injury screening; the science of pain and the psychology of injury and rehabilitation; developing core stability and flexibility; performance retraining of muscle, tendon and bone injuries; recovery from training and rehabilitation; end-stage rehabilitation, testing and training for a return to performance. Every chapter offers a masterclass from a range of elite sport professionals, containing best practice protocols, procedures and specimen programmes designed for high performance.No other book examines rehabilitation in such detail from a high performance standpoint.Sports Injury Prevention and Rehabilitation is essential reading for any course in sports medicine and rehabilitation, strength and conditioning, sports science, and for any clinician, coach or high performance professional working to prevent or rehabilitate sports injuries.
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Injury Prevention and Rehabilitation in Sport
Injury Prevention and Rehabilitation in Sport examines the key factors at play in the reduction and prevention of injury to athletes at all levels of sport. The book combines the latest scientific research with a critical review of current literature and the author's own personal experience working in the field of strength and conditioning at elite level to explain why certain modalities should or should not be prescribed by strength and conditioning coaches. There are full colour sequenced photographs showing the correct techniques for a wide variety of essential strength exercises. Other topics covered include how to effectively manage recovery and avoid overtraining; techniques for range of movement and corrective exercise; the most effective methods for shoulder and trunk stability; the theory and practice of propioception and plyometrics and how they can improve performance; the different methods employed when working with female or maturing athletes and the physiological impact of factors such as sleep patterns, travel, climate and illness on performance. The book concludes with a series of case studies that illustrate how to put theory into practice.
Price: 16.99 £ | Shipping*: 3.99 £
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Does a homologous pair of chromosomes consist of two single-chromatid chromosomes or two double-chromatid chromosomes?
A homologous pair of chromosomes consists of two single-chromatid chromosomes. Each chromosome in the pair comes from one parent, and they carry the same genes in the same order, but may have different versions of those genes. During the S phase of the cell cycle, each single-chromatid chromosome replicates to form a double-chromatid chromosome, but these double-chromatid chromosomes do not pair up with each other during normal cell division.
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What is the difference between chromatids, chromosomes, and pairs of chromosomes?
Chromatids are two identical copies of a chromosome that are joined together at the centromere. Chromosomes are thread-like structures made of DNA and proteins that contain genetic information. Pairs of chromosomes refer to two homologous chromosomes, one inherited from each parent, that carry similar genes but may have different variations. In summary, chromatids are the duplicated copies of a single chromosome, chromosomes are the structures that contain genetic material, and pairs of chromosomes are homologous chromosomes inherited from each parent.
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What is the difference between double chromosomes and homologous double chromosomes?
Double chromosomes refer to a pair of identical chromosomes that are present in a diploid organism, one inherited from each parent. On the other hand, homologous double chromosomes are a pair of chromosomes that are similar in size, shape, and genetic content, but not identical. Homologous chromosomes carry the same genes in the same order, but may have different versions of those genes (alleles) due to genetic variation.
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How do chromosomes spiralize?
Chromosomes spiralize through a process called supercoiling. This occurs when the DNA double helix is twisted around itself, creating a more compact structure. Enzymes called topoisomerases are responsible for this process, helping to regulate the level of supercoiling in the chromosome. Supercoiling allows the long DNA molecule to be packaged into the small space of the cell nucleus, and also plays a role in regulating gene expression and DNA replication.
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