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The extreme endpoint of this distribution are the so-called 'monogenic' obesities where most of the impact on body weight can be tied to a mutation in a single gene that runs in a single family. The classic example of such a genetic effect is the presence of mutations in the leptin gene. [29]
In biology, a gene cassette is a type of mobile genetic element that contains a gene and a recombination site. Each cassette usually contains a single gene and tends to be very small; on the order of 500–1,000 base pairs. They may exist incorporated into an integron or freely as circular DNA. [1]
SMN1 is the telomeric copy of the gene encoding the SMN protein; the centromeric copy is termed SMN2. SMN1 and SMN2 are part of a 500 kbp inverted duplication on chromosome 5q13. This duplicated region contains at least four genes and repetitive elements which make it prone to rearrangements and deletions. The repetitiveness and complexity of ...
People in the field work toward developing an understanding of how the whole body responds to a food via systems biology, as well as single gene/single food compound relationships. [1] [2] Nutritional genomics or Nutrigenomics is the relation between food and inherited genes, it was first expressed in 2001. [3] [4]
Protein A, B and C are isoforms encoded from the same gene through alternative splicing. A protein isoform, or "protein variant", [1] is a member of a set of highly similar proteins that originate from a single gene and are the result of genetic differences. [2] While many perform the same or similar biological roles, some isoforms have unique ...
This is less than that found in the dispersed bulk (0.4513 at black label "7"). Similarly, for aa, (q •) 2 = 0.1303—again less than the equivalent in the progenies bulk (0.1898). Clearly, genetic drift has increased the overall level of homozygosis by the amount (0.6411 − 0.5342) = 0.1069. In a complementary approach, the heterozygosity ...
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Monogenic obesity is excess weight caused by a mutation in a single gene, as opposed to syndromic obesity not tied to a single gene variation and most obesity, which is caused by multiple genetic and environmental risk factors.