### beginning | cause | factor:

Sigma factor
* associate with a core RNA polymerase under appropriate environmental conditions.
* give the enzyme the ability recognize their specific promoters.

Significant factor
* Some significant factors contribute to mortality.
* affect distribution.
* contribute to development.
* limit numbers.

Single factor
* can have drastic effects
* explain observations.
* influence success.

Situational factor
* are also predictive of violence.
* emphasize or diminish some aspects of one's personality.

### beginning | cause | factor:

Social factor
* Many social factors play into teaching and learning.
* Most social factors affect responses.
* Some social factors affect success
  - appear to have enormous impact on violent crime
* affect health
* are a major factor in perception
  - also a major cause for people s aggression
  - the primary reason people do what they do
* can have as much impact on buying decisions as fuel costs
  - precipitate suicidal thoughts
  - serve to facilitate diffusion
* emphasize cultural perspectives, stigma and the influence of environmental stress.
* influence behavior
  - breed success
* influence the acoustic variability in the long- distance calls of male chimpanzees
  - long-distance calls of male chimpanzees
* play a major role in weight gain.

Socioeconomic factor
* are a significant component of man's environment
  - major influences on both energy intake and energy expenditure
  - the primary reason that children are available for adoption by foreigners
* play an important role in both nutritional excess and deficiency.

Sociological factor
* Many sociological factors influence crime rates.
* can have implications for design.

Specific factor
* Most specific factors regulate cell growth
* Some specific factors affect turbidity levels.
* influence growth.
* require further investigations
* trigger activations.

Such factor
* affect compositions
  - movement
* alter effects.
* cause variation.
* determine potential.
* have effects.
* influence animals
  - results
* may have effects
  - secondary effects
* promote development.

Systemic factor
* are usually hormones made by a gland and secreted into the blood stream.
* impact breathe techniques.
* impact proper breathe techniques

Third factor
* determine biological diversity
* involve attention.

Tissue factor
* is present in most human cells bound to the cell membrane
  - the principal physiological initiator of the coagulation cascade
* potent contributor to acute coronary events.
* promotes melanoma metastasis by a pathway independent of blood coagulation.
* regulates plasminogen binding and activation.

### beginning | cause | factor:

Transcription factor
* Many transcription factors contain a DNA-binding domain
  - interact with co-factors that can modulate their activity
* Most transcription factor binding sites can occur in both orientations in promoters or enhancers.
* Most transcription factors bind to multiple binding sites in a genome
  - promote development
* Some transcription factors affect fashion
  - function to re-model chromatin, making DNA accesible to other factors
  - have functions
  - involve in responses
* Some transcription factors regulate metabolic responses
* are generally proteins with multiple domains
  - proteins that activate or repress the expression of genes
  - regulatory proteins that influence the expression of specific genes
* bind to DNA so they have DNA binding domain
  - specific signals to promote or hinder RNA polymerase
  - the promoters and allow RNA polymerase to act
* determine flower organ primordium identity and assure organ development.
* have a DNA-binding domain and a domain that activates transcription.
* play a central role in the control of morphogenesis and organogenesis
  - key roles in cell fate specification and cell differentiation
* regulate whether genes are transcribed.
* represent only a small fraction of the proteins in a cell.