# If P, then Q.

# If isotherms are concave towards the " north-east " direction ( 45 °), then adiabats are concave towards the " east north-east " ( 31 °).

# If adiabats and isotherms are graphed severally at regular changes of entropy and temperature, respectively ( like altitude on a contour map ), then as the eye moves towards the axes ( towards the south-west ), it sees the density of isotherms stay constant, but it sees the density of adiabats grow.

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

# If the beat on the new record hits before the beat on the current record then the new record is too fast, reduce the pitch and manually slow the speed of the new record to bring the beats back in sync.

# If the beat on the new record hits after the beat on the current record then the new record is too slow, increase the pitch and manually increase the speed of the new record to bring the beats back in sync.

# It's Not Funny If I Have To Explain It — 2004 ; strips from 1997 to 2004, with more of Adams ' handwritten notes

# I Can't Remember If We're Cheap or Smart — 2012

# If equals are added to equals, then the wholes are equal.

# If equals are subtracted from equals, then the remainders are equal.

# If the remainder from dividing N by 6 is not 2 or 3 then the list is simply all even numbers followed by all odd numbers ≤ N

# If the remainder is 2, swap 1 and 3 in odd list and move 5 to the end ( i. e. 3, 1, 7, 5 )

# If the remainder is 3, move 2 to the end of even list and 1, 3 to the end of odd list ( i. e. 4, 6, 8, 2-5, 7, 9, 1, 3 )

# If the design is symmetrical in an axis parallel to the flag pole, obverse and reverse will be identical despite the mirror-reversal, such as the Indian Flag or Canadian Flag

# If not, the obverse and reverse will present two variants of the same design, one with the hoist on the left ( usually considered the obverse side, see flag illustrations ), the other with the hoist on the right ( usually considered the reverse side of the flag ).

# If two straight lines in a plane are crossed by another straight line ( called the transversal ), and the interior angles between the two lines and the transversal lying on one side of the transversal add up to less than two right angles, then on that side of the transversal, the two lines extended will intersect ( also called the parallel postulate ).

# Associativity: If a * b and b * c are defined, then ( a * b ) * c and a * ( b * c ) are defined and equal.

# Identity: If a * b is defined, then a * b * b < sup >− 1 </ sup >

# If it persists, " gather facts and seek help.

# If the noun is animate, natural gender tends to dictate grammatical gender.

# If the borrowed word happens to have a suffix that the borrowing language uses as a gender marker, the suffix tends to dictate gender.

# If the borrowed word rhymes with one or more native words, the latter tend to dictate gender.

# If a project's spending becomes too much for a committee to continue funding, it must take the issue to the Project Committee.

# Affordable premium: If the likelihood of an insured event is so high, or the cost of the event so large, that the resulting premium is large relative to the amount of protection offered, it is not likely that the insurance will be purchased, even if on offer.

# If the German Armed Forces ( Wehrmacht ) were not in a position to break the danger from the Eastern front, then Nazi Germany would fall to Bolshevism, and all of Europe would fall shortly afterward ;

# The cell membrane shows irregular buds known as blebs.

# The cell breaks apart into several vesicles called apoptotic bodies, which are then phagocytosed.

# HIV enzymes deactivate anti-apoptotic Bcl-2 This does not directly cause cell death, but primes the cell for apoptosis should the appropriate signal be received.

# HIV proteins decrease the amount of CD4 glycoprotein marker present on the cell membrane.

# HIV decreases the production of molecules involved in marking the cell for apoptosis, giving the virus time to replicate and continue releasing apoptotic agents and virions into the surrounding tissue.

# The infected CD4 + cell may also receive the death signal from a cytotoxic T cell.

# Simple and concise definition: Chromatin is DNA plus the proteins ( and RNA ) that package DNA within the cell nucleus.

# A eukaryotic cell transcribes the DNA ( from genes ) into RNA ( pre-mRNA ).

# The same cell processes the pre-mRNA strands by removing introns, and adding a poly-A tail and 5 ’ Methyl-Guanine cap.

# This mixture of mature mRNA strands is extracted from the cell.

# The web address for the cell.

# Logic gate cell library which is used to implement the logic

# Reverse the reduction reaction with the smallest potential ( to create an oxidation reaction / overall positive cell potential )

# Regulation of immune system activity and inflammation: chemokine receptors bind ligands that mediate intercellular communication between cells of the immune system ; receptors such as histamine receptors bind inflammatory mediators and engage target cell types in the inflammatory response

# Cell density sensing: A novel GPCR role in regulating cell density sensing.

# Transport of the hormone to the target cell ( s )

# Recognition of the hormone by an associated cell membrane or intracellular receptor protein

# the cortex, which contains the keratin bundles in cell structures that remain roughly rod-like ; and in some cases,

# REDIRECT Hematopoietic stem cell

# 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.

# The linear phage genome is injected past the cell outer membrane.

# Products of the lysis genes S, R, Rz and Rz1 cause cell lysis.

# The host cell, containing a dormant phage genome, experiences DNA damage due to a high stress environment, and starts to undergo the SOS response.