Sentences with phrase «most mutations»

But while most mutations are indeed harmful, some ultimately prove beneficial.
Geneticists still do not know enough about how most mutations in the human genome affect the body to reliably recommend any treatments or other actions based simply on their existence.
Mutations that initially occur at random may end up seeming to be «directed» in highly nonrandom patterns since most mutations that occur are quickly lost from the population, often in just one generation.
Most mutations between the two species have simply built up over time — these «silent» mutations are not expressed, and for purposes of de-extinction can be considered «background noise.»
If this restructuring is advantageous, nature selects the organism for survival; if the restructuring enfeebles the organism, as happens with most mutations, the outcome may be extinction.
Most mutations do not result in viable (let alone reproductively successful) offspring — and the great abortionist in the sky takes care of these non-viable mutations.
Though most mutations are detrimental for the bugs, he says, «this gives you a tremendous opportunity for change and adaptation to a new environment.»
«This has left out the vastly richer data residing in sounds, primarily because sound changes in different words are not independent, as most mutations in genetics are, for example.»
Together, these mutational processes explain most mutations found in 30 of the most common cancer types.
Thus, most mutations resulting in loss of gene function are known as recessive, meaning that an organism must inherit two mutant copies of the gene from its parents before an overt defect is observed, as is the case in humans with muscular dystrophy, cystic fibrosis or Tay Sachs disease.
Since most mutations are unfavorable and do not aid the organism in its struggle for survival, and since there is so much waste, it is tempting to make chance, aided by natural selection, the controlling factor in evolution.
Most mutations between the two species have simply built up over time — these «silent» mutations are not expressed, and for purposes of de-extinction can be considered «background noise.»
Most mutations in C. elegans affect both life span and reproduction, which had led scientists to believe that body cells and female reproductive cells aged according to the same clock.
most mutations are recessive.
Most mutations are deleterious.
Most mutations are deleterious to the organism in which they occur.
«Most mutations in an adapted population will be bad.
However, most mutations that have been shown to cause cancer are located outside of genes.
In 1968, your friend and mentor Motoo Kimura proposed the neutral theory of molecular evolution, arguing that most mutations that occur have neither advantageous nor deleterious consequences for an organism.
He asserts that random mutations can't do the job of building new biochemical systems, so «most mutations that built the great structures of life must have been nonrandom.»
It is known that the genes that accumulate the most mutations are linked to the tumor type, and we found this too, however we showed that the mutational spectrum of a tumor is determined by breed type,» says Dr. Ingegerd Elvers, a researcher with Professor Kerstin Lindblad - Toh at both Uppsala University and Broad Institute.
Intriguingly, in two breeds it appeared that the genes that accumulated the most mutations were the same in B - cell lymphomas, whilst for T - cell lymphomas it differed between genes for two breeds.
Michael Le Page writes that if most of our DNA is functional, «most mutations would fall in important sequences and...
Most mutations are neutral, having no effect on gene function; others are harmful, such as the ones that cause inherited diseases like cystic fibrosis.
Most mutations are caused by chemical or radiation damage from the immediate environment or within the cell itself.
It is known that the genes that accumulate the most mutations are linked to the tumour type, and we found this too, however we showed that the mutational spectrum of a tumour is determined by breed type», says Dr. Ingegerd Elvers, a researcher with Professor Kerstin Lindblad - Toh at both Uppsala University and Broad Institute.
It is known that the genes that accumulate the most mutations are linked to the tumour type, and we found this too, however we showed that the mutational spectrum of a tumour is determined by breed type», said Ingegerd Elvers who is a researcher in SciLifeLab Co-Director Kerstin Lindblad - Toh's group.
«We think that immune therapies work in cancers that have the most mutations and therefore have the most abnormal proteins being expressed that stimulate the immune system,» said Venook, the UCSF oncologist.
In «nature», even though many mutations can improve an organism's chance for survival, most mutations are detrimental to to long - term survival — thus, within a few generations, the mutation would be eliminated due to natural selection.
Fortunately, most mutations are not this common.
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