# Bacteriophage Lambda binds to the target E. coli cell, the J protein in the tail tip interacting with the lamB gene product of E. coli, a porin molecule which is part of the maltose operon.

# Complementary DNA then binds to the U5 ( non-coding region ) and R region ( a direct repeat found at both ends of the RNA molecule ) of the viral RNA

# A signaling molecule activates a specific receptor protein on the cell membrane.

# The sum of OSs for all atoms in a molecule or polyatomic ion is equal to the charge of the molecule or ion, so that the OS of one element can be calculated from the OS of the other elements.

# Induction ( also known as polarization ), which is the attractive interaction between a permanent multipole on one molecule with an induced multipole on another.

# N-3 protonation of adenine by Arg180 allows deprotonation of a nearby water molecule.

# A neutral atom or molecule, in a region of strong electric field ( such as the high potential gradient near the curved electrode ) is ionized by a natural environmental event ( for example, being struck by an ultraviolet photon or cosmic ray particle ), to create a positive ion and a free electron. Image: Corona Discharge initiation. svg

# The H-OSO < sub > 3 </ sub > H molecule has a δ + charge on the initial H atom.

# REDIRECT Small molecule

# Ligand binding assay when a ligand ( usually a small molecule ) binds a receptor ( usually a large protein ).

# Proton transfer from the oxonium ion to a second molecule of the alcohol gives an activated complex

# electron spin-molecular rotation ( the rotation of a molecule corresponds to a magnetic dipole, which interacts with the magnetic dipole moment of the electron )

# electric field gradient-nuclear electric quadrupole interaction ( the interaction between the electric field gradient of the electron cloud of the molecule and the electric quadrupole moments of nuclei ( if present )).

# The CCA tail is a cytosine-cytosine-adenine sequence at the 3 ' end of the tRNA molecule.

# The magnitude of the atomic weight determines the character of the element, just as the magnitude of the molecule determines the character of a compound body.

# Another anti-estrogenic molecule called tamoxifen is often used in the prevention and treatment of breast cancer.

# Human chorionic gonadotropin ( hCG ) is a molecule which is structurally similar to luteinizing hormone ( LH ).

# molecule must possess a nitrogen atom capable of bearing a positive charge, preferably a quaternary ammonium salt.

# The molecule should have an oxygen atom, preferably an ester-like oxygen capable of participating in a hydrogen bond.

# The molecule must have 4n π electrons where n is any integer.

# The molecule must be cyclic.

# The molecule must have a conjugated pi electron system.

# Collisional energy transfer between the nitrogen and the carbon dioxide molecule causes vibrational excitation of the carbon dioxide, with sufficient efficiency to lead to the desired population inversion necessary for laser operation.

# If morality is objective and absolute, God must exist.

# Therefore, God must exist.

# The hijacking or control takeover of an aircraft must be a result of unlawful use of violence or an attempt to use violence ;

# The unlawful act must be committed on board of an aircraft ( that is, by a person being on board of an aircraft, e. g. a passenger or crew member.

# It is not possible to know the value of all the properties of the system at the same time ; those properties that are not known exactly must be described by probabilities.

# Therefore, a First Cause ( or something that is not an effect ) must exist.

# Commonality — there must be one or more legal or factual claims common to the entire class ( in some cases, it must be shown that the common issues will predominate the proceedings over individual issues, such as the amount of damages due to a particular class member ),

# Adequacy — the representative parties must adequately protect the interests of the class,

# Numerosity — the class must be so large as to make individual suits impractical ( in other words, that the class action is a superior vehicle for resolution than numerous individual suits ), and

# Typicality — the claims or defenses must be typical of the plaintiffs or defendants.

# A definition must set out the essential attributes of the thing defined.

# The definition must not be too wide or too narrow.

# The definition must not be obscure.

# The time value of money ( risk-free rate ) – according to the theory of time preference, investors would rather have cash immediately than having to wait and must therefore be compensated by paying for the delay.

# It is not good enough to have ideas, you must also be able to implement them and know they work.

# there must be a public emergency threatening the life of the nation ;

# any measures taken in response must be " strictly required by the exigencies of the situation ", and

# the measures taken in response to it, must be in compliance with a state's other obligations under international law

# Half-reactions must be multiplied by integers to achieve electron balance.

# An unavoidable set contains regions such that every map must have at least one region from this collection.

# The giver must declare to Allah his intention to give the Zakat.

# The Zakat must be paid on the day that it is due.

# After the Offering, the payer must not exaggerate on spending his money more than usual means.

# Payment must be in kind.