Timeline for What are non-heritable changes to genomes?
Current License: CC BY-SA 3.0
17 events
| when toggle format | what | by | license | comment | |
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| Oct 31, 2014 at 10:36 | answer | added | rg255 | timeline score: 2 | |
| Oct 31, 2014 at 10:00 | comment | added | rg255 | The definition above states "from one cell, or organism, to another" @Chris | |
| Oct 31, 2014 at 8:57 | comment | added | Chris♦ | @GriffinEvo Using this definition every mutation would be heritable as long as the cell which acquired it is still dividing. | |
| Oct 31, 2014 at 8:14 | comment | added | rg255 | Mutations in Cancer cells are heritable @Chris - they pass from one generation of cancer cells to the next, not heritable in the germ-line of the organism but still inherited within lineages of cells. | |
| Oct 31, 2014 at 6:03 | comment | added | WYSIWYG | Somatic mutations are "heritable" by the daughter cells of the somatic cell. It is indeed heritable in the cellular level; doesn't mean that it will always be inherited (what if the cell dies/doesn't divide) | |
| Oct 30, 2014 at 23:24 | comment | added | ddiez | Regardless of the use of "heritable", the later part of the quoted paragraph is not true: "we can state that mutations are changes in the nucleotide sequence of DNA that are passed on from one cell, or organism, to another". It should be "that may be passed on". As many pointed out mutations are not necessarily passed on. | |
| Oct 30, 2014 at 22:23 | comment | added | canadianer | Also what is your definition of changes to the genome? Sequence changes, epigenetic changes, regulatory changes? | |
| Oct 30, 2014 at 22:17 | comment | added | canadianer | The passage says mutations are changes in the DNA sequence that are passed on from one cell or organism to another. Their definition of heritable seems to be how a layman would perceive it, not necessarily how am evolutionary biologist would. | |
| Oct 30, 2014 at 20:34 | comment | added | Dissenter | @Remi.b "Principles of Life" By Hillis ... piece of crap if you ask me. I prefer Campbell. | |
| Oct 30, 2014 at 20:25 | comment | added | Remi.b | What is your textbook btw? | |
| Oct 30, 2014 at 19:55 | comment | added | Remi.b | To my point of view the expression "heritable change in DNA" is extremely misleading of even a non-sense. OR it uses a definition of heritability that is close to the one of inheritance. The concept of inheritance then depends on whether we look at multicellular inheritance or unicellular inheritance. | |
| Oct 30, 2014 at 19:42 | comment | added | Chris♦ | I don't see it like this. A mutation is a change in the DNA code. | |
| Oct 30, 2014 at 19:33 | history | edited | Dissenter | CC BY-SA 3.0 |
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| Oct 30, 2014 at 19:33 | comment | added | Dissenter | @Chris "Mutations Are Heritable Changes in DNA" | |
| Oct 30, 2014 at 19:28 | comment | added | Chris♦ | Mutations are not necesarily heritable changes to the genome. Think of newly acquired mutations that lead to cancer. These are not heritable. Only mutations which are present in the sperm or egg cells are heritable, no matter whether these are old or newly acquired. Non-heritable changes in the genome occur anywhere else, for example in your skin after prolonged sun exposure. | |
| Oct 30, 2014 at 19:07 | answer | added | Remi.b | timeline score: 3 | |
| Oct 30, 2014 at 18:28 | history | asked | Dissenter | CC BY-SA 3.0 |