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content/Biokemi/Gamla tentor/2022-01-29/9.md
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---
date: 2022-01-29
tags:
- biokemi
- provfråga
- evolution
---
Discuss the evolutionary origin of RNase P. This question needs to be answered in English. (Max 100 words.) (2p)
**Answer**
```spoiler-block
The RNaseP is an enzyme consisting of both RNA and protein. By comparing the level of protein in different organisms we can see that in less complex organisms like bacteria the enzyme consists of most RNA and only one protein unit, comparing with "arkener" which is a more complex organism there is shorter/smaller RNA unit and more protein units. In even more complex organisms like humans the protein units are much greater than the RNA-unit. This provens the hypothesis that RNA also acted as enzymes long time ago, before "the tasks were split" to proteins to be more efficient.
```