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  • chromosomal
  • The rest of trisomy 21 mosaics are marked as "low- grade" mosaics, meaning the chromosomal mutation occurs in less than 3-5% of respective tissue. (wikipedia.org)
  • alteration
  • Another mutation involves the alteration in the number of bases in a gene. (encyclopedia.com)
  • In many cases, mutations are identified by the classical technique of phenotypic identification - looking for an alteration in appearance or behavior of the mutant. (encyclopedia.com)
  • Because proteins called enzymes control most cell activities, a mutation affecting an enzyme can result in alteration of other cell components. (factmonster.com)
  • proteins
  • Mutations are also extremely useful in determining the effect of particular gene on the structure and function of specific proteins in combination with genetic engineering techniques. (hubpages.com)
  • It was found that the reason the second amber mutation could suppress the first one is that the two numerically reduced structural proteins would now be in balance. (wikipedia.org)
  • Most proteins can withstand one or two point mutations before their function changes. (wikipedia.org)
  • random mutation
  • It remains true to say that we know of no way other than random mutation by which new hereditary natural selection by which the hereditary constitution of a population changes from one generation to the next. (angelfire.com)
  • On the flip side, the incidence of pancreatic cancer (for example) can be totally accounted for by random mutation. (scienceblogs.com)
  • common mutation
  • On the right, a fairly common mutation in mice causes bands in the coat around the body. (mit.edu)
  • Finally, a common mutation in humans causes red blood cells to be shaped in a sickle pattern as shown above on the upper left. (mit.edu)
  • Thymine-thymine dimers are the most common mutation caused by UV light. (wikipedia.org)
  • novo
  • One of the new or de novo mutations researchers found in more than one affected individual in this study was a deletion of a region of chromosome 22. (psychcentral.com)
  • The researchers plan to extend their screen for additional de novo mutations by using increased resolution scans to study additional families. (psychcentral.com)
  • 1998
  • Mutations is the third official studio album and sixth overall by American alternative rock artist Beck, released in 1998 on DGC Records. (wikipedia.org)
  • occurs
  • The mutation occurs following: The possessive pronouns he "her", o "their, ma/va "my" and (in the Tr├ęgorrois Dialect) hon "our": he zad "her father" o faotr "their son" ma c'hi "my dog" The numerals tri "three (masc. (wikipedia.org)
  • The mutation of t and k occurs following the infixed pronoun 'm "me" (am, em with verbal particles), da'm "to my" and em "in my": em zi "in my house" Mutation of k occurs following hor "our": hor c'harr "our car" The word Pask "Easter" becomes Fask following the days Sul "Sunday" and Lun "Monday. (wikipedia.org)
  • tryptophan
  • A mutation in E.coli was found to have an altered form of the enzyme which is insensitive to tryptophan inhibition. (hubpages.com)
  • In addition, the tryptophan mutation rate was unaffected when the cells were deprived of another amino acid, cysteine, further suggesting that the mutation rate was specific to situations in which the mutation was advantageous. (wikipedia.org)
  • Microbial
  • Microbial mutations are also extensively used in the investigation of various biochemical processes, particularly biosynthetic reactions. (hubpages.com)
  • researchers
  • A unique collaboration among Shriners Hospital for Children - Canada, CHU Sainte-Justine and McGill University has enabled researchers to identify genetic mutations involved in a rare disease that. (mcgill.ca)
  • Researchers describe specific genetic mutations present in individuals who have schizophrenia, but not present in their biological parents who do not have the disease. (psychcentral.com)
  • High rates of chromosome aberrations resulting from ionizing radiation and the accompanied detrimental effects made researchers look for alternate sources for inducing mutations. (wikipedia.org)
  • Cornish
  • The individual languages vary on the number of mutations available: Scottish Gaelic has one, Irish and Manx have two, Welsh has three (not counting mixed mutations) and Cornish and Breton have four (counting mixed mutations). (wikipedia.org)
  • Cornish and Breton have so-called mixed mutations, where a trigger causes one mutation to some sounds and another to other sounds. (wikipedia.org)
  • processes
  • Mutations arise from a number of processes collectively termed mutagenesis. (encyclopedia.com)
  • Mutations play a part in both normal and abnormal biological processes including: evolution, cancer, and the development of the immune system, including junctional diversity. (wikipedia.org)
  • Sandhi effects like these (or other phonological processes) are usually the historical origin of morphosyntactically triggered mutation. (wikipedia.org)
  • BECK
  • Though less commercially successful than the preceding Odelay, Mutations established Beck as an eclectic and innovative[opinion] artist for his sample-free mixture of far-ranging musical genres, including folk rock, bossa nova, psychedelia, country, and blues. (wikipedia.org)
  • Before beginning the recording sessions, Beck gained permission from the major label he was under contract with, Geffen, to release Mutations on the small indie label Bong Load Records. (wikipedia.org)
  • triplet
  • Silent mutations lead to a change of one of the letters in the triplet code that represents a codon, but despite the single base change, the amino acid that is coded for remains unchanged or similar in biochemical properties. (wikipedia.org)
  • harmful
  • The creation model, on the other hand, would predict that, if there are any such things as real mutations, causing 'vertical' changes in complexity and order of the kings, they will be harmful, not beneficial. (angelfire.com)
  • Even if the mutations are not harmful enough to cause their carriers to be eliminated completely by natural selection, the over-all effect is to gradually lower the viability of the population. (angelfire.com)
  • This usefulness of mutations may suggest that these mutations could someday be used as a method for early detection of harmful and dangerous diseases. (hubpages.com)
  • Women with harmful mutations in either BRCA1 or BRCA2 have a risk of breast cancer that is about five times the normal risk, and a risk of ovarian cancer that is about ten to thirty times normal. (wikipedia.org)