As an Amazon Associate I earn from qualifying purchases.

Molecular clock Notes: Definitions & Explanations PDF | Download eBooks

Download Molecular clock Notes App (Play Store) Download Molecular clock Notes App (App Store)

Study Molecular clock lecture notes PDF with biology definitions and explanation to study What is Molecular clock?. Study molecular clock explanation with biology terms to review biology course for online degree programs.

Molecular clock Definition:

  • Molecular clock is an approach for measuring the absolute time of evolutionary change based on the observation that some genes and other regions of genomes appear to evolve at constant rates.

    Campbell Biology by J.B. Reece, L.A. Urry, M.L. Cain, S.A. Wasserman, P.V. Minorsky, R.B. Jackson



Molecular clock Notes:

The molecular clock is figurative term for a technique that uses the mutation rate of biomolecules to deduce the time in prehistory when two or more life forms diverged. The biomolecular data used for such calculations are usually nucleotide sequences for DNA or amino acid sequences for proteins.

Keep Learning with Biology Notes

What is Cuboidal epithelium?

Cuboidal epithelium has cells whose height and width are approximately the same (cube shaped). The cell nucleus is large, spherical ...

What is Over nourishment?

Overnutrition or hyperalimentation is a form of malnutrition in which the intake of nutrients is oversupplied. The amount of nutrients ...

What are Homoplasies?

A homoplasy is a character shared by a set of species but not present in their common ancestor. A good ...

What is Tracheid?

Tracheids are elongated cells in the xylem of vascular plants that serve in the transport of water and mineral salts. ...

What are Obligate aerobes?

An obligate aerobe is an organism that requires oxygen to grow. Through cellular respiration, these organisms use oxygen to metabolize ...

What is Heart?

The heart is a muscular organ in most animals, which pumps blood through the blood vessels of the circulatory system. ...