Molecule

molecule
two or more atoms combined chemically
Source: Noland, George B. 1983. General Biology, 11th Edition. St. Louis, MO. C. V. Mosby ...
Full article >>>

Class I molecules consist of two polypeptide chains, a long one (on the left) of 346 amino acids — it is called the heavy chain — and a short one (on the right) of 99 amino acids.
The heavy chain consists of 5 main regions or domains: ...
Full article >>>

Molecule versus Mixture: Molecules are compounds with elements in definite, fixed ratios. Those atoms are held together usually by one of the three bonds discussed above. For example: water, glucose, ATP.
Full article >>>

A macromolecule is a molecule composed of a very large number of atoms. But generally the use of term is restricted to molecules of more than 100 atoms, and in particular to polymers. Many examples come from biology and in particular biochemistry.
Full article >>>

A macromolecule is a molecule with a large molecular mass, but generally the use of the term is restricted to polymers and molecules which structurally include polymers. [1] ...
Full article >>>

Chapter 7
Single-molecule live-cell imaging of clathrin-based endocytosis
Tomas Kirchhausen*1, Werner Boll*, Antoine van Oijen and Marcelo Ehrlich* ...
Full article >>>

Nitrogenous base: a molecule with the properties of a base, which also contains the element nitrogen.
Nucleic acid: a large molecule composed of repeating nucleotides ...
Full article >>>

Hydrophobic; describing molecules or groups that are poorly soluble in water. These molecules would be composed either of elements having nonpolar covalent bonds or polar covalent bonds that cancel each other out.
Full article >>>

Molecules are two or more atoms that have bonded together. They may be composed of atoms of the same element or of different elements.
A molecule is the smallest part of a compound that still has the properties of that compound.
Example: Methane ...
Full article >>>

molecule: a precise arrangement of atoms of different elements.
Monera: the kingdom that includes the bacteria and the cyanobacteria; prokaryotic organisms.
monocytes: some of the white blood cells that function in phagocytosis.
Full article >>>

Molecules that constitute the inner bilayer of biological membranes, having a polar, hydrophilic head and a nonpolar, hydrophobic tail.
phosphorylation
Addition of a phosphate group or groups to a molecule.
Full article >>>

Molecule Type
Limit searches to retrieve only genomic DNA/RNA, messenger RNA (mRNA), or ribosomal RNA (rRNA).
Database ...
Full article >>>

molecule A particle composed of two or more atoms bonded together. An aggregate of at least two atoms in a definite arrangement held together by special forces.
molecular biology The study of the biochemical structure and function of organisms.
Full article >>>

Molecule two or more atoms bonded together
(molecul = a little mass)
KingdomMonera the Kindgom to which prokaryotes such as bacteria and blue-green algae belong
(moner mono = one single) ...
Full article >>>

A molecule that serves as the pattern for synthesising another molecule e.g. a single stranded DNA molecule can be used as a template to synthesise the complementary nucleotide strand.
Related Terms: Deoxyribonucleic acid (DNA) ...
Full article >>>

Of Molecules and Men (Prometheus Books, 2004; original edition 1967) ISBN 1591021855
What Mad Pursuit: A Personal View of Scientific Discovery (Basic Books reprint edition, 1990) ISBN 0465091385 ...
Full article >>>

: A molecule that has both a hydrophobic and a hydrophilic part.
Analogy
: A similarity due to convergent evolution (common function) but not inheritance from a common ancestor (bat's wings and bird's wings). See also
homology
.
Full article >>>

macromolecule - molecule such as a protein, nucleic acid, or polysaccharide with a molecular mass greater that a few thousand daltons ...
Full article >>>

Biotin
A molecule that can be incorporated into dUTP and used as a non-radioactive label for a DNA probe.
Blunt (flush) end
The end of a DNA molecule at which both strands terminate at the same nucleotide position with no single-stranded extension.
Full article >>>

A protein molecule in a plant or animal that catalyzes specific metabolic reactions without itself being permanently altered or destroyed.
Eukaryotic cells (or eukaryotes): ...
Full article >>>

Polymer. A molecule composed of repeated subunits.
Polymerase (DNA). Synthesizes a double-stranded DNA molecule using a primer and DNA as a template. (See Poly(A) polymerase, Polymerase chain reaction, RNA polymerase, Taq polymerase.) ...
Full article >>>

Peptide: A molecule formed by peptide bonds covalently linking two or more amino acids.
Full article >>>

Polypeptide: A molecule made up of a stri ng of amino acids. A protein is an example of a polypeptide.
Proteins: The active molecules in all cells. Proteins control biochemical reactions and determine the physical structure of organisms.
Full article >>>

Several of the molecules we work on do this; one is called defensin, which is a wonderful word for a protein.
Full article >>>

A large complex molecule made up of one or more chains of amino acids. Proteins perform a wide variety of activities in the cell.
explained:
Listen to a detailed explanation.
Full article >>>

Blood pigment. A molecule used by an organism to transport oxygen efficiently, usually in a circulatory system (e.g., hemoglobin)
Bloom. (phytoplankton) A population burst of phytoplankton that remains within a defined part of the water column ...
Full article >>>

Probe A labelled molecule which will recognise and bind to a specific target molecule, thus allowing detection of the target. DNA probes are used to locate and quantitate DNA (or RNA) of complementary sequence.
Full article >>>

amino acid -- unit molecule from which proteins are constructed by polymerization.
ATP -- "adenosine triphosphate". A relatively stable, high energy molecule used to fuel chemical reactions within cells.
Full article >>>

The net movement of molecules from an area of high concentration to an area of lower concentration until both concentrations are equal.
Full article >>>

A matrix composed of a highly purified form of agar that is used to separate larger DNA and RNA molecules ranging 20,000 nucleotides. (See Electrophoresis.) Alleles.
Full article >>>

Amplification -- any process by which specific DNA sequences are replicated disproportionately greater than their representation in the parent molecules. Aneuploidy -- state of having variant chromosome number (too many or too few). (i.e.
Full article >>>

passive transport Transport of a molecule across a membrane down a concentration gradient which does not require the input of energy. -pathy disease of, suffering pathogenic Disease-causing.
Full article >>>

DNA - deoxyribonucleic acid is the double-helix molecule holding the genetic information of organisms that, along with protein, composes the chromatin ...
Full article >>>

The transfer RNA (tRNA) molecules actually do the translation. There is at least one tRNA for each of the 20 common amino acids.
Full article >>>

In a related paper, Glen and Payne 1995 discuss the use of genetic algorithms to automatically design new molecules from scratch to fit a given set of specifications.
Full article >>>

This technique is based on the assumption that a highly-transcribed gene should have more molecules of RNA polymerase bound to it than will the same gene in a less-active state.
Full article >>>

(Adenosine TriPhosphate) A molecule consisting of adenosine (adenine plus a ribose sugar) and three phosphate groups.
Full article >>>

cAMP - cyclic 3',5' - adenosine monophosphate, an important intracellular second messenger molecule formed from ATP by the enzyme adenylate cyclase.
Full article >>>

An abundant class of molecules consisting of a non-coding sequence of approximately 22 nucleotides. miRNA controls gene expression at the post-transcriptional level.
Related
siRNA ...
Full article >>>

organic. A material (e.g. pesticide) whose molecules contain carbon and hydrogen atoms. Also may refer to plants or animals which are grown without the use of synthetic fertilizers or pesticides.
outer bark. In older trees, the dead part of the bark.
Full article >>>

Ballistic particle-mediated gene transfer. Complementary DNA molecules are adsorbed to gold particles and shot by a pressure gas jet into tissues or culture cells.
HIGH-PRESSURE FREEZING ...
Full article >>>

Mitochondria
Small organelles in the cell where energy from electron transport between molecules is converted into energy for biological activity. Mitochondria also possess their own genome, which is inherited maternally.
Full article >>>

The components of a typical prokaryotic cell are a cell wall, a cytoplasmic membrane, a single molecule of DNA, ribosomes and the cytoplasm. All other components, although they might be present, are essentially dispensable.
Full article >>>

in the investigation of the function of a particular gene, e.g. analysis of genetic interactions. Within organisms, genetic information generally is carried in chromosomes, where it is represented in the chemical structure of particular DNA molecules.
Full article >>>


'"/>