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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.
What else can I help you with?
A molecular clock relies on the repeating process of?
A molecular clock relies on the repeating process of DNA mutations occurring at a relatively constant rate over time. By measuring the differences in DNA sequences between species or individuals, scientists can estimate when they diverged from a common ancestor. This provides insights into evolutionary relationships and the timing of key events in evolutionary history.
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 is a chemical clock reaction that changes color over time due to a series of reactions involving the oxidation of iodide ions by ammonium ions in the presence of hydrogen peroxide. The color change occurs because of the alternating formation of different iodine species with distinct colors. The timing of these reactions can be controlled by adjusting the concentrations of the reactants, allowing for the clock-like color change.
Why should the pupils not use pairs of the same type of metals for the clock?
Using pairs of the same type of metals can create a galvanic cell, leading to potential corrosion and inaccurate clock readings. By using two different types of metals, such as copper and zinc, you can create a simple battery without the risk of unwanted reactions that may affect the clock's accuracy.
What is a clock glass used for?
A clock glass is usually used to cover the face or dial of a clock, protecting it from dust and damage while still allowing visibility. It helps to maintain the aesthetics of the clock and can also enhance its overall durability.
What kind of clock does paleontologist use?
Molecular Clock
Is a molecular clock the same as a biological clock?
Yes!
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.
What is the purpose of a molecular clock and the properties that a section of protein must have to be used in this way?
A molecular clock uses the rate of genetic mutations to estimate the timing of evolutionary events. For a section of protein to be used in a molecular clock, it must have a relatively constant mutation rate, be conserved across species, and have a known or predictable function. Additionally, it should evolve neutrally, meaning that changes in the protein do not impact the organism's fitness.
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 does a molecular clock measure.?
A molecular clock measures the rate at which genetic mutations accumulate in a species over time. By comparing differences in genetic sequences, scientists can estimate how long ago different species diverged from a common ancestor.
What does not affect the rate of mutation is a molecular clock?
A molecular clock is a method used to estimate the time of evolutionary events based on the rate of molecular changes, particularly in DNA sequences. While it provides insights into the timing of divergence between species, it does not influence the actual rate of mutation, which is determined by factors such as environmental influences, replication errors, and DNA repair mechanisms. Thus, the molecular clock is a tool for interpreting mutation rates rather than a factor that affects them.
What is a molecular clock and how it is used to show relationships?
A molecular clock is a tool used to estimate the times of speciation events based on the rate at which DNA or protein sequences accumulate changes. By comparing the genetic differences between organisms, the molecular clock can provide insights into how species are related and when they diverged from a common ancestor. This information helps construct evolutionary relationships and timelines.
What is Kimuras Neutral Theory of Molecular Evolution?
Kimura (1968) • The vast majority of evolutionary changes at the molecular level are caused by random drift of selectively neutral mutants (not affecting fitness) ! The Molecular Clock.
