answersLogoWhite

0


Best Answer

Each organism has a specific sequence of DNA, this is what makes up the organism itself appearance and functions. If a sequence in the DNA has changed, so has an aspect of the organism. If there are enough changes over time that a scientist has monitored, then a new or modified species has formed.

User Avatar

Wiki User

12y ago
This answer is:
User Avatar
More answers
User Avatar

Wiki User

13y ago

Because DNA has information about the past family.

This answer is:
User Avatar

User Avatar

Wiki User

13y ago

Molecular Clocks

This answer is:
User Avatar

User Avatar

Wiki User

10y ago

genetic comparisons

This answer is:
User Avatar

Add your answer:

Earn +20 pts
Q: How do DNA and RNA help scientists determine evolutionary relationships?
Write your answer...
Submit
Still have questions?
magnify glass
imp
Related questions

The number and structure of what can help to determine evolutionary relationships between species?

The number and structure of chromosomes help determine evolutionary relationships between species. Chromosome comparison helps to provide evidence of the relationships in a species.


The number and structure of can help to determine evolutionary relationships between species?

chromosommes


How do scientists determine the evolutionary relationship among species?

They use a taxonomic map to help classify organisms. The placement of organisms on this was originally based on similarities between species. Today we are able to look at their actual genes, which has resulted in a better understanding of evolutionary relationships - or the lack of them- and has resulted in some re-classification.


How do developmental patterns help biologists determine evolutionary relationships among animals?

You know that Mrs. Lilliendahl doesn't approve of wikianswers... tisk tisk...


How does analysis of DNA help scientists establish an evolutionary classification scheme?

Analysis of DNA helps scientists establish an evolutionary classification scheme by comparing the genetic sequences of different organisms. The more similar the DNA sequences are between two species, the more closely related they are believed to be. By studying the similarities and differences in DNA, scientists can determine how different species are related to one another and create a classification scheme based on their evolutionary relationships.


Can behavioral differences between species help identify evolutionary relationships?

True


Behavioral differences between species can help to identify evolutionary relationships.?

Yes


Why can genes be considered derived characters?

Genes can be considered derived characters because they are inherited traits that have evolved over time, showing differences from ancestral forms. By comparing genes across different species, scientists can determine relationships and evolutionary history. Derived characters in genes can help track the divergence and relationships between organisms.


6 How did the discovery of temporal skull holes help scientists determine phylogeny of amniotes?

How did the discovery of temporal skull holes help scientists determine phylogeny of amniotes


How are evolutionary relationships determined?

(False )They use a taxonomic maping to help classify organisms.Yes


How might behavior be used to identify evolutionary relationships?

They use a taxonomic mapping to help classify organisms.


Scientists used a system of to help understand the relationships between organisms?

ecology