BRAINCAKEComparing mRNA
Molecular phylogenetics is the branch of phylogeny that analyses genetic, hereditary molecular differences, in DNA. mRNA or amino-acids sequences to gain information on an organism's evolutionary relationships.
From these analyses, it is possible to hypothesise the processes by which diversity among species has been achieved. The result of a molecular phylogenetic analysis is expressed in a phylogenetic tree.
Sign in free to see the rest of this lesson, the R.E.C.I.P.E. recall steps and the quiz
BrainCake is free. Make an account in seconds and pick up where this page stops.
Key terms in this lesson
- gene
- A length of DNA that codes for a polypeptide or a functional RNA molecule, at a specific locus on a chromosome.
- intron
- A non-coding sequence of DNA or pre-mRNA that is removed by splicing before translation.
- species
- A group of organisms with similar characteristics that can interbreed to produce fertile offspring.
- phylogeny
- The evolutionary relationship between organisms and their ancestors, often represented as a branching tree.
More in Biodiversity
- Balancing Conservation and Farming
- Managing Ecosystems
- Investigating Diversity
- Comparing DNA
- Comparing Amino-acids Sequences
- Sampling
- Random Sampling
- Normal Distribution
All 33 lessons in Biodiversity · All AQA AS-level Biology topics