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Drosophila melanogaster
Drosophila melanogaster, a dipteran (two-winged) insect, is the species of fruit fly that is commonly used in genetic experiments; it is among the most important model organisms. In modern biological ... > more -
Prokaryote
Prokaryotes are organisms without a cell nucleus, or indeed any other membrane-bound organelles, in most cases unicellular (in rare cases, multicellular). This set of characteristics is distinct from ... > more -
Chloroplast
Chloroplasts are organelles found in plant cells and eukaryotic algae that conduct photosynthesis. Chloroplasts absorb sunlight and use it in conjunction with water and carbon dioxide gas to produce ... > more -
Exocrine gland
Exocrine glands are glands that secrete their products into ducts. They are the counterparts to endocrine glands, which secrete their products directly into the bloodstream. Typical exocrine glands ... > more -
Genetic code
The genetic code is the set of rules by which information encoded in genetic material (DNA or RNA sequences) is translated into proteins (amino acid sequences) by living cells. Specifically, the code ... > more -
Neurotransmitter
Neurotransmitters are chemicals that are used to relay, amplify and modulate electrical signals between a neuron and another cell. Substances that act as neurotransmitters can be roughly categorized ... > more -
Frog zoology
About 400 million years ago, some members of the sarcopterygian group of fish moved onto land. These became the first amphibians. Today, these animals still spend part of their lives in water and ... > more -
Neuroscience
Neuroscience is a field of study that deals with the structure, function, development, genetics, biochemistry, physiology, pharmacology, and pathology of the nervous system, divided into the central ... > more
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