RNA world hypothesis: Difference between revisions
Jump to navigation
Jump to search
No edit summary |
No edit summary |
||
| Line 1: | Line 1: | ||
The RNA world hypothesis is one possible explaination to the paradox surrounding the origin of life on Earth. The central dogma of molecular biology states that DNA is required to produce proteins, with RNA<span style="line-height: 1.5em;"> </span><span style="line-height: 1.5em;">acting as an intermeidate.<ref>Londish, H., Berk, A., Kaiser, C.A., Krieger, M., Bretscher, A., Ploegh, H., Amon, A. &amp; Scott, M.P. (2013) Molecular Cell Biology. 7th edn. Basingstoke: Macmillan Higher Education. p. 116.</ref> The paradox arises due to the fact that DNA is required to produce proteins, but protiens are required to produce DNA.<ref>Alberts, B., Bray, D., Hopkins, K., Johnson, A., Lewis, J., Raff, M., Roberts, K. and Walter, P. (2014) Essential Cell Biology. 4th edn. Abingdon: Garland Science. p. 253.</ref> This raises the question how did such a interdependant system first arise?</span> | The RNA world hypothesis is one possible explaination to the paradox surrounding the origin of life on Earth. The central dogma of molecular biology states that DNA is required to produce proteins, with RNA<span style="line-height: 1.5em;"> </span><span style="line-height: 1.5em;">acting as an intermeidate.<ref>Londish, H., Berk, A., Kaiser, C.A., Krieger, M., Bretscher, A., Ploegh, H., Amon, A. &amp;amp; Scott, M.P. (2013) Molecular Cell Biology. 7th edn. Basingstoke: Macmillan Higher Education. p. 116.</ref> The paradox arises due to the fact that DNA is required to produce proteins, but protiens are required to produce DNA.<ref>Alberts, B., Bray, D., Hopkins, K., Johnson, A., Lewis, J., Raff, M., Roberts, K. and Walter, P. (2014) Essential Cell Biology. 4th edn. Abingdon: Garland Science. p. 253.</ref> This raises the question how did such a interdependant system first arise?</span> | ||
The RNA world hypothesis states that due to the ability of RNA to both store genetic information and catalyse chemical reactions, it may be the precursor to current life. | The RNA world hypothesis states that due to the ability of RNA to both store genetic information and catalyse chemical reactions, it may be the precursor to current life.<ref>Alberts, B., Johnson, A., Lewis, J., Raff, M., Roberts, K. and Walter, P. (2008) Molecular Biology of the Cell. 5th edn. Abingdon: Garland Science. pp. 400-408.</ref> | ||
<br> | <br> | ||
Revision as of 18:07, 10 November 2014
The RNA world hypothesis is one possible explaination to the paradox surrounding the origin of life on Earth. The central dogma of molecular biology states that DNA is required to produce proteins, with RNA acting as an intermeidate.[1] The paradox arises due to the fact that DNA is required to produce proteins, but protiens are required to produce DNA.[2] This raises the question how did such a interdependant system first arise?
The RNA world hypothesis states that due to the ability of RNA to both store genetic information and catalyse chemical reactions, it may be the precursor to current life.[3]
References
- ↑ Londish, H., Berk, A., Kaiser, C.A., Krieger, M., Bretscher, A., Ploegh, H., Amon, A. &amp; Scott, M.P. (2013) Molecular Cell Biology. 7th edn. Basingstoke: Macmillan Higher Education. p. 116.
- ↑ Alberts, B., Bray, D., Hopkins, K., Johnson, A., Lewis, J., Raff, M., Roberts, K. and Walter, P. (2014) Essential Cell Biology. 4th edn. Abingdon: Garland Science. p. 253.
- ↑ Alberts, B., Johnson, A., Lewis, J., Raff, M., Roberts, K. and Walter, P. (2008) Molecular Biology of the Cell. 5th edn. Abingdon: Garland Science. pp. 400-408.