We use cookies to give you the best experience possible. By continuing we’ll assume you’re on board with our cookie policy

Living organisms

The whole doc is available only for registered users

A limited time offer! Get a custom sample essay written according to your requirements urgent 3h delivery guaranteed

Order Now

1. What does it mean when scientists say that living organisms share a universal genetic code? All living organisms are similar genetically, for example, a human could be 99.5% similar to a chimpanzee and 5% genetically similar to a frog.

2. Based on the amino acid sequence data for the Cytochome-C protein, chimpanzees and humans share an identical coding sequence. What other species identified on the chart has a coding sequence that is most closely related to the humans and chimpanzees and most distantly related? Explain your answer. The next closest to humans and chimps are horses, because on the chart there are 3 differences and the rest are similar

3. How are self-replicating molecules, such as RNA molecules in the “RNA World” hypothesis, essential to the most popular hypotheses about the origin of life on Earth? The origin of life on Earth is said to be from a single organism, which branched out to create everything there is today. A universal genetic code takes the similarities in organisms and compares them to suggest that each organism came from a single organism from early Earth. Although, this is just a theory, but can support the beginning of life.

4. How might similarities and differences in genetic codes, or the proteins built as a result of these codes, be used to determine how closely related different species are? Scientists cut the DNA of the species into small segments, separate the strands, and mix the DNA together. When the two species’ DNA bonds together, the match between the two strands will not be perfect since there are genetic differences between the species – and the more imperfect the match, the weaker the bond between the two strands.

Work cited: http://evolution.berkeley.edu/evolibrary/article/history_26

Related Topics

We can write a custom essay

According to Your Specific Requirements

Order an essay
Materials Daily
100,000+ Subjects
2000+ Topics
Free Plagiarism
All Materials
are Cataloged Well

Sorry, but copying text is forbidden on this website. If you need this or any other sample, we can send it to you via email.

By clicking "SEND", you agree to our terms of service and privacy policy. We'll occasionally send you account related and promo emails.
Sorry, but only registered users have full access

How about getting this access

Your Answer Is Very Helpful For Us
Thank You A Lot!


Emma Taylor


Hi there!
Would you like to get such a paper?
How about getting a customized one?

Can't find What you were Looking for?

Get access to our huge, continuously updated knowledge base

The next update will be in:
14 : 59 : 59