### rate | frequency:

Allele frequency
* is also avaiable for horses as well
  - calculated from genotype frequencies
  - the fundamental measurement used to define population structure
* refers to how often an allele occurs in a population.

Beat frequency
* has to be understood in order to tune a musical instrument.
* is the number of beats heard per second.

Gene frequency
* Gene frequencies can change when a small group of individuals separates from a larger population
  - change across the generation and the species evolves
  - describe the genetic variation in the entire gene pool
* is the frequency of an allele at a given locus in a population
  - relative ferquency of a particular allele
* represents how often an allele occurs in a population.

High frequency
* High frequencies are radio frequencies.
* High frequencies correspond to high tones, and low frequencies are low tones
  - and low frequencies to low tones
  - tend to use only the outer parts of the conductor
* Some high frequency sound waves cause internal damage.
* lighting with low energy tubes reduces electricity consumption.

### rate | frequency:

Higher frequency
* Higher frequencies are also the first to recover after a storm.
* Higher frequencies correspond to features of smaller angular extent
  - harmonics of the fundamental frequencies
* Higher frequencies have shorter wavelengths, and lower frequencies have longer wavelengths
  - translate to shorter wavelengths
+ Mobile phone, Technology: Telephone :: Messaging
  * The radio waves that the mobile phone networks use are split into different frequencies. The frequency is measured in Hz. Low frequencies can send the signal farther. Higher frequencies provide better connections and the voice communications are generally clearer.

### rate | frequency:

Incidence
* Being overweight common problem in the United States.
* Refers to who bears the burden of a tax.
* are frequencies
* denotes the rate of occurrence of new cases of infection per unit of time.
* direct correlation with the number of drugs prescribed.
* is expressed as the number of new cases of a given type of cancer diagnosed per year
  - increased in monozygotic twins
  - the number in a population per unit of time
* is the number of new cases added in a defined period, usually a year
  - of a disease within a period of time
  - newly diagnosed cases in a given location during a given time period
  - rate in a population which gets sick on a specific disease
  - used as one measure of risk
* measures the number of new cases of disease in a given time period.
* occurs most frequently in areas of poverty and overcrowded living conditions.
* refers to new events in a population in a defined amount of time.
* refers to the number of new cases occurring in the population during a given period
  - cases per some period of time
* specifies the angle of incidence in the y-z plane, measured from the z axis.

### rate | frequency | incidence:

Cancer incidence
* increases with age.
* is monitored by population-based tumor registries around the world
  - the estimated number of new cases of cancer diagnosed each year

Economic incidence
* attempts to measure the true burden of taxation.
* involves who ultimately bears the cost of the tax.

Radio frequency
* Radio frequencies are electromagnetic signals which range from microwave to radio in length
  - can pass through solid objects such as walls
  - resonate in it at wavelengths that correspond to the line spacings
* drying keeps food crisp without baking it until it's brittle.
* heating current.

### rate | frequency | radio frequency:

Low frequency
* Low frequencies are radio frequencies
  - cause the whole membrane to vibrate
  - have long waves with lots of energy
  - tend to travel better through and around objects
* radio frequency

### rate | gait:

Stagger
* are animal diseases.
* occurs when an animal's blood magnesium and calcium levels fall below normal.