| b x s | brother x sister inbreeding |
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| inbr | inbreeding |
| inbreeding | The mating of two closely related persons. Also called consanguinity. (12 Dec 1998) |
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| inbreeding, coefficient of | A statistical way of gauging how close two people are as to their genes. The coefficient of inbreeding (symbolised as f) is the probability that a person with two identical genes received both genes from an identical ancestor. Take, for example, first cousins. They share a set of grandparents. For any particular allele (gene) in the father, the chance that the mother inherited the same allele from the same source is 1/8. For any gene the father passes to his child, the chance is 1/8 that the mother has the same gene and 1/2 that she transmits that gene to the child so 1/8 x 1/2 = 1/16. Thus, a first-cousin marriage has a coefficient of inbreeding f =1/16. The added risks to the offspring of first cousins depend not only upon this coefficient of inbreeding but also upon the genetic family history and, in some cases, upon test results (as to beta thalassaemia, for instance, for first cousins of italian descent). There are always added risks from the mating of closely related persons. (12 Dec 1998) |
| coefficient of inbreeding | A statistical way of gauging how close two people are as to the genes. The coefficient of inbreeding (symbolised as F) is the probability that a person with two identical genes received both genes from an identical ancestor. Take first cousins who by definition share a set of grandparents. So for any particular allele (gene) in the father, the chance that the mother inherited the same allele from the same source is 1/8. Further, for any gene the father passes to his child, the chance is 1/8 that the mother has the same gene and 1/2 that she transmits that gene to the child so 1/8 X 1/2 = 1/16. Thus, a first-cousin marriage has a coefficient of inbreeding F =1/16. The added risks to the offspring of first cousins depend not only upon this coefficient of inbreeding but also upon the genetic family history and, in some cases, upon test results (for example, for beta thalassaemia for first cousins of Italian descent). However, there are always added risks from the mating of closely related persons and those risks are not negligible. (12 Dec 1998) |
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| Wright's inbreeding coefficient | <genetics> The percentage of homozygous alleles an individual has. The probability that any two genes in an individual have the same ancestral origin (which is shared by both parents). (09 Oct 1997) |
Synonyms : Backcrossings, Half Sib Mating, Half-Sib Matings, Mating, Half-Sib, Mating, Sib, Matings, Half-Sib, Matings, Sib, Self Fertilization, Self-Fertilizations, Sib Matings
| inbreeding |
the act of mating closely related individuals
Ãâó: wordnet.princeton.edu/perl/webwn
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| inbreeding |
Mating between biologically related individuals.
Ãâó: highered.mcgraw-hill.com/sites/0767430220/student_...
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| inbreeding |
Description: Mating among related individuals. Source: Specialized encyclopedia and dictionaries
Ãâó: europa.eu.int/comm/research/biosociety/library/glo...
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| inbreeding |
the mating of two closely related cats (mother and son or brother and sister)
Ãâó: members.lycos.co.uk/furbabies/glossary3.html
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| inbreeding |
Mating or crossing of individuals more closely related that average pairs in the population.
Ãâó: www.streamnet.org/pub-ed/ff/Glossary/glossaryfish....
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| inbreeding | the act of mating closely related individuals |
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