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Inbreeding

Biology In vivoInbreeding coefficient

Inbreeding is breeding between close relatives, whether plant or animal. If practiced repeatedly, it often leads to a reduction in genetic diversity.

 


inbreeding coefficient (F)
the probability that an individual has a pair of alleles that are identical by descent from a common ancestor; the proportion of loci that carry alleles that are identical by descent from a common ancestor ...

Inbreeding Depression
However, while it is an advantage both to the species and to humans to produce these desirable qualities that may benefit the organisms in question, ...

inbreeding
The mating of individuals that are closely related genetically.
inclusive fitness ...

Inbreeding The mating of related individuals.
Insertion mutation A mutation caused by the addition of genetic material into a gene.

Inbreeding coefficient
The probability of homozygosity by descent (having common ancestors). The probability that a zygote obtains copies of the same ancestral gene from both its parents because they are related. The probability of autozygosity.

Inbreeding
The mating of genetically related individuals. Mating between relatives. Breeding through a succession of parents belonging to the same stock.
Related Terms:
Mating
The act of pairing a male and female organism for reproductive purposes.

inbreeding depression In a small population, an accumulation of harmful genetic traits (through random mutations and natural selection) that lowers viability and reproductive success of enough individuals to affect the whole population.

Inbreeding results in a greater-than-expected number of rare autosomal recessive phenotypes.
Cystic Fibrosis ...

It is, in fact, another way of looking at the inbreeding effect in small populations ... Whether regarded as inbreeding or as random sampling of genes, the effect is the same.

In a long career, he invented much of the theory of genetic drift (also known as the "Sewall Wright effect") and developed the inbreeding coefficient and many of its applications.

Nonrandom mating involves individuals inbreeding and assortative mating.

FIS (inbreeding coefficient) is the proportion of the variance in the subpopulation contained in an individual. High FIS implies a high degree of inbreeding.

The closer the kinship, the more alleles shared and the greater the degree of inbreeding. Inbreeding can alter the gene pool. This is because it predisposes to homozygosity.

Topics to be covered include LINKAGE computer programs; handling of inbreeding loops, age-dependent penetrance, and sex-specific recombination fractions; models of genetic heterogeneity; analysis of complex diseases; ...

Mating between blood relatives ; usually refers to inbreeding or incestuous matings.
A B C D E F G H I J K L M N O P Q R S T U V W X Y Z ...

Low genetic diversity, resulting from centuries of selective inbreeding, make crops especially susceptible to pests and parasites. During the 1970s the U.S. corn crop was almost completely wiped out by a leaf fungus.

A large gene pool has extensive genetic diversity and is better able to withstand the challenges posed by environmental stresses. Inbreeding contributes to the creation of a small gene pool and makes populations or species more likely to go extinct ...

See also: Population, Organ, Gene, Species, Genetics