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Sensory neuron -- Sensory neurons are nerve cells within the nervous system responsible for converting external stimuli from the organism's environment into internal electrical impulses. For example, some sensory ... > full article

Somatic cell -- A somatic cell is generally taken to mean any cell forming the body of an organism. Somatic cells, by definition, are not germline cells. In mammals, germline cells are the sperm and ova (also known ... > full article

Peripheral nervous system -- The peripheral nervous system or PNS, is part of the nervous system, and consists of the nerves and neurons that reside or extend outside the central nervous system (the brain and spinal cord) to ... > full article

Biological tissue -- Biological tissue is a collection of interconnected cells that perform a similar function within an organism. The study of tissue is known as histology, or, in connection with disease, ... > full article

Organelle -- In cell biology, an organelle is one of several structures with specialized functions, suspended in the cytoplasm of a eukaryotic cell. Eukaryotes are the most structurally complex known cell type, ... > full article

Molecular biology -- Molecular biology is the study of biology at a molecular level. The field overlaps with other areas of biology and chemistry, particularly genetics and biochemistry. Molecular biology chiefly ... > full article

Human biology -- Human biology is an academic field of biology which focuses on humans; it is closely related to medicine, primate biology, and a number of other fields. A human being is a multicellular eukaryote ... > full article

Motor neuron -- In vertebrates, motor neurons (also called motoneurons) are efferent neurons that originate in the spinal cord and synapse with muscle fibers to facilitate muscle contraction and with muscle spindles ... > full article

Developmental biology -- Developmental biology is the study of the process by which organisms grow and develop. Modern developmental biology studies the genetic control of cell growth, differentiation and "morphogenesis," ... > full article

Vector (biology) -- Traditionally in medicine, a vector is an organism that does not cause disease itself but which spreads infection by conveying pathogens from one host to another. Species of mosquito, for example, ... > full article

Trait (biology) -- In biology, a trait or character is a feature of an organism. The term phenotype is sometimes used as a synonym for trait in common use, but strictly speaking, does not indicate the trait, but the ... > full article

Introduction to genetics -- Genetics is the study of how living things receive common traits from previous generations. These traits are described by the genetic information carried by a molecule called DNA. The instructions ... > full article

Cell (biology) -- The cell is the structural and functional unit of all living organisms, and is sometimes called the "building block of life." Some organisms, such as bacteria, are unicellular, consisting of a single ... > full article

Genetics -- Genetics is the science of genes, heredity, and the variation of organisms. Humans applied knowledge of genetics in prehistory with the domestication and breeding of plants and animals. In modern ... > full article

Mitosis -- In biology, mitosis is the process by which a cell separates its duplicated genome into two identical halves. It is generally followed immediately by cytokinesis which divides the cytoplasm and cell ... > full article

Plant cell -- There are three major classes of plant cells that can then differentiate to form the tissue structures of roots, stems, and leaves. (The three distinct types of plant cells are classified according ... > full article

Nervous system -- The nervous system of an animal coordinates the activity of the muscles, monitors the organs, constructs and also stops input from the senses, and initiates actions. The nervous system of vertebrate ... > full article

Biochemistry -- Biochemistry is the study of the chemical processes and transformations in living organisms. Biochemistry is the study of the structure and function of cellular components, such as proteins, ... > full article

Sympathetic nervous system -- The sympathetic nervous system (SNS) is part of the autonomic nervous system (ANS), which also includes the parasympathetic nervous system (PNS). The sympathetic nervous system activates what is ... > full article

Biological life cycle -- A life cycle is a period involving one generation of an organism through means of reproduction, whether through asexual reproduction or sexual reproduction. In regard to its ploidy, there are three ... > full article

 

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Summaries | Headlines

Genetic Differences In Clover Make One Type Toxic (October 4, 2007) -- That clover necklace you make for your child could well be a ring of poison. That's because some clovers have evolved genes that help the plant produce cyanide -- to protect itself against little ... > full story

Sizing Cells Up: Researchers Pinpoint When A Cell Is Ready To Reproduce (October 4, 2007) -- For more than 100 years, scientists have tried to figure out the cell size problem: How does a cell know when it is big enough to divide? In research conducted in budding yeast, scientists have now ... > full story

Genes Determine Mate Choice, At Least For Fat Tailed Dwarf Lemurs (October 4, 2007) -- How do we choose our mates? For quite some time now, scientists suspect that it is not for looks or fashion, neither for love or sympathy. It may be the genes that determine our preference for ... > full story

Red Wine Ingredient -- Resveratrol -- Fights Diabetes In Mice (October 4, 2007) -- Even relatively low doses of resveratrol -- a chemical found in the skins of red grapes and in red wine -- can improve the sensitivity of mice to the hormone insulin, according to a new report. As ... > full story

Indian Bug Is The Ancestor Of Crohn's Disease Pathogen (October 4, 2007) -- A seemingly unknown mycobacterial organism Mycobacterium indicus pranii could be the earliest ancestor of the 'generalist' branch of mycobacterial pathogens. The 'generalist' bacteria infect anything ... > full story

Beyond A 'Speed Limit' On Mutations, Species Risk Extinction (October 4, 2007) -- Scientists have identified a virtual "speed limit" on the rate of molecular evolution in organisms, and the magic number appears to be six mutations per genome per generation -- a level beyond which ... > full story

Safer Drugs For Tropical Disease Leishmaniasis Under Development (October 4, 2007) -- The fight against the deadly tropical disease leishmaniasis, also known as black fever, has been boosted by a new screening system has raised the possibility of new, safer ... > full story

Viewing Dye-packed Vesicles Causes Them To Explode (October 4, 2007) -- It's a long-standing question: Can just the act of observing an experiment affect the results? According to a new study, if the experiment uses a fluorescent dye called acridine orange, the answer is ... > full story

Sea Otter, Peregrine Falcon Back From The Brink Of Extinction But Other Species At Risk In Canada (October 4, 2007) -- There's good news and bad news in the Committee on the Status of Endangered Wildlife in Canada (COSEWIC) report. The good news: The peregrine falcon and the sea otter no longer face extinction. The ... > full story

Huge New Dinosaur Had A Serious Bite (October 3, 2007) -- The newest dinosaur species to emerge from Grand Staircase-Escalante National Monument had some serious bite, according to researchers. 'It was one of the most robust duck-billed dinosaurs ever,' ... > full story

New Species Of Frog Discovered: Smallest Indian Land Vertebrate (October 3, 2007) -- The India's smallest land vertebrate, a 10-millimeter frog, has been discovered in a mountain range in Western India. Indian land vertebrates (all animals with backbone except fishes), comprises of ... > full story

Individual Differences Caused By Shuffled Chunks Of DNA In The Human Genome (October 3, 2007) -- Scientist have proposed a new view of what causes the greatest genetic variability among individuals -- suggesting that it is due less to single point mutations than to the presence of structural ... > full story

< more recent summaries | earlier summaries >

Human Molecular Genetics, Third Edition
Univ. of Newcastle, UK. Textbook focuses on the new knowledge in human molecular genetics since the Human Genome Project. Includes new chapters on cells and development and on functional genomics, ... > read more

Biological Science (2nd Edition)
Infused with the spirit of inquiry, Freeman's Biological Science helps teach readers the fundamentals while introducing them to the excitement that drives the science. By presenting unifying concepts ... > read more

Short Protocols in Molecular Biology (Short Protocols in Molecular Biology)
Recently expanded to 2 volumes, Short Protocols in Molecular Biology, Fifth Edition, provides condensed descriptions of more than 700 methods compiled from Current Protocols in Molecular Biology. ... > read more

Fundamentals of Anatomy & Physiology (7th Edition)
KEY BENEFIT: Fundamentals of Anatomy & Physiology, Seventh Edition featuresenhancements to its award-winning art program and time-saving pedagogy. The coordination between narrative discussions and ... > read more

The Biology Of Belief: Unleashing The Power Of Consciousness, Matter And Miracles
The Biology of Belief is a groundbreaking work in the field of New Biology. Author Dr. Bruce Lipton is a former medical school professor and research scientist. His experiments, and those of other ... > read more

Biology : The Unity and Diversity of Life (with CD-ROM and InfoTrac)
Cecie Starr and Ralph Taggart are among the most successful authors in introductory, biological science instruction because of their lively approach, engaging writing style, current coverage of the ... > read more

Essentials of Human Anatomy & Physiology with Essentials of InterActive Physiology CD-ROM (8th Edition)
Essentials of Human Anatomy & Physiology, Eighth Edition continues to set the standard for A&P; texts with an enhanced media package and new active learning features that help readers better visualize ... > read more

Cell and Molecular Biology : Concepts and Experiments
Now fully updated and revised, the new Fourth Edition of Cell and Molecular Biology not only offers you and your students all of the latest research, it also gives students the tools they need to ... > read more

Disorders of Hemoglobin: Genetics, Pathophysiology and Clinical Management
Disorders of Hemoglobin is the first comprehensive reference on the genetic and acquired disorders of hemoglobin in over a decade. It stands as the definitive work on the genetics, pathophysiology, ... > read more

Childhood Brain & Spinal Cord Tumors: A Guide for Families, Friends & Caregivers
Childhood Brain & Spinal Cord Tumors, the most complete parent guide available, includes detailed and precise medical information about both benign and malignant brain and spinal cord tumors that ... > read more

 
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