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What should be true of a molecule being used as a molecular clock?
Wiki User
∙ 11y ago
These are the choices that I found online, elsewhere.
a) It has a consistent rate of neutral mutations from generation to generation. b) It is a rare molecule that is not found in many living species that might be compared. c) Its mutations always affect the phenotype, making it easier to observe the changes. d) It serves an unnecessary function, making it less likely to be preserved over time
I am going to say A as well. Molecular clock infers a rate which A addresses. Also, a classic example of a molecular clock concept uses cytochrome C in which the changes are neutral mutations - too much change and this vital protein does not work. This would not be an "easily observable phenotype" unless someone considers protein sequencing an easy endeavor. Also, mitochondrial DNA is used to trace human ancestry because of its a higher mutation rate than nuclear DNA. Of course, consistent is an interesting word here. If there is punctuated equilibrium at play, it may not be a consistent rate. However, a silent mutation can be found by DNA/protein sequencing so I would not think there absolutely has to be a phenotype change to be seen. Go with A.
Wiki User
∙ 11y ago
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A molecular clock relies on the repeating process of?
Mutations
What is a molecular clock and how is it used to show relationship?
it is a diogram that expsoes fools to radiation
How does the ammonia clock work?
The ammonia clock was the first atomic clock invented by the US National Bureau of Standards in 1948 that measured the speed of the vibrations of nitrogen atom in ammonia molecule.
Why should the pupils not use pairs of the same type of metals for the clock?
Because of the Chemical Reaction stored on the metal
Element used to make atomic clock?
One type of atomic clock uses Rubidium.
What kind of clock does a paleontologist use?
Molecular Clock
Is a molecular clock the same as a biological clock?
Yes!
What kind of clock does paleontologist use?
Molecular Clock
Why do different genes have a different molecular clock rate according to the neutral theory of molecular evolution?
Different genes have different molecular clock rates due to the amount of Cytoplasmic Dyruduemion the genes contain. The more Cytoplasmic Dyruduemion the genes have, the slower the molecular clock rate, according to the neutral theory of molecular evolution.
What is the main idea behind the model of of a molecular clock?
The main idea behind the model of a molecular clock is that neutral mutations accumulate at a steady rate.
A model that uses DNA comparisons to estimate the length of time that two species have been evolving independently is known as a?
molecular clock
Type of clock that estimates how long species have been evolving independently?
Molecular Clock
Type of clock that estimates how long species have been envolving independently?
molecular clock.
A molecular clock relies on the repeating process of?
Mutations
On what concept does the molecular clock rely?
i believe that it completes a fossil record....
What is a molecular clock and how it is used to show relationships?
it is a diogram that expsoes fools to radiation
What is a molecular clock and how is it used to show relationship?
it is a diogram that expsoes fools to radiation
