Human pedigree analysis & pedigree analysis chart
Pedigree analysis is a family chart in which genetic family history is represented by symbols and lines. Represents people as a symbol in pedigree analysis, and lines represent genetics. Pedigree is a visual tool used to describe biological relationships in a family and document the inheritance of genetic diseases. Most of the Medical and Genetic Counselors in Pedigree are prepared.
The genealogy chart is a diagram showing the occurrence and emergence of phenotypes of a particular gene or organism with ancestors present from one generation to the next, usually humans, show dogs, and racehorses.
The genealogy is the corruption of the Anglo Norman French de grue or "crane's foot" probably because the normal lines and the separated lines resemble a small leg and foot a. because such a symbol, was used to indicate the sequence in genealogical charts.
Human pedigree analysis & pedigree analysis chart PDF Download
Descendant relationships are shown as a series of lines. Parents are connected by a horizontal line and a straight line leads to their offspring. The interest is connected by a horizontal sibship line and is listed in the order of birth from left to right. If the offspring are twins, they will be connected, by a triangle. If the seed dies then its mark will cross the line. When a fetus is born or aborted, it is represented, by a small triangle.
Use of Symbol in Pedigree Analysis
In England and Wales genealogies are officially recorded at the Armed Forces College, which has records dating back to the Middle Ages, including genealogies collected during interrogation questions by its publishers during the sixteenth and seventeenth centuries. The purpose of this visit was to register and regulate the use of coats of arms.
Those who claimed to have the right to bear arms had to prove that they had been given a weapon by the College or a descendant of an ancestor with a right to arms. It is for this reason that genealogies were recorded through visits. Tribes continue to enroll in the Armed Forces College and are kept up to date voluntarily but are not accessible to the general public without payment.
The most visible, therefore, genealogies listed in published literature, such as Burke's Peerage and Burke's Landed Gentry in the United Kingdom as well, in continental Europe by Almanach de Gotha. The genealogy can be used to determine the child's chances of having a specific problem or condition. It may be used to determine the genetic makeup of the genes, and to determine whether a trait is strong or repetitive.
If the genealogy index shows a status from 50:50 the ratio between males and females is considered autosomal. If the condition is more severe in males in the genealogy it is considered x-linked. Other examples of prominent factors include male baldness, astigmatism, and dwarfism. Other examples of changing symptoms include small eyes, thin body hair, and long stature.
