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What three things can affect the rate of diffusion?
Diffusion refers to the process where substances from a highly concentrated area move to a place with a lower concentration. The three factors that affect the rate of diffusion are temperature, concentration gradient and the molecular weight of the substances.
How were neurospora spores treated to increase the mutation rate?
They were (and still can be) shot with X-rays. This heightens mutation rate is Neurospora spores.
What factors affect the rate of diffustion of one gas through another?
Some factors are:- temperature- pressure- molecular size- concentration
How does pressure affect the rate of diffussion?
Higher pressures cause more molecular collisions which in turn causes a greater rate of diffusion. The opposite is also true - lower pressures cause a decreased rate of diffusion.
Does adding sugar to water affect the rate of evaporation?
Yes, it decreases the evaporation rate. Sugar molecule contains a lot of -OH groups, which can make Hydrogen bonds with water. Since molecular attraction increases the rate of evaporation decreases.
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.
How does the mutation rate affect the speed at which a population adapts to its environment?
it blends in with its surroundings.
Why does shaking affect the rate at which the solute dissolves?
Shaking affects the rate at which a solute dissolves because it increases the molecular activity of the solute within the solvent. When the molecular activity is increased, the rate of dissolving is also increased.
What should be true of a molecule being used as a molecular clock?
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.
Biologists use molecular clocks to try to measure?
Generally, a molecular clock is used to describe the rate of molecular change over time that tells you when two species, or taxa, have diverged.
What three things can affect the rate of diffusion?
Diffusion refers to the process where substances from a highly concentrated area move to a place with a lower concentration. The three factors that affect the rate of diffusion are temperature, concentration gradient and the molecular weight of the substances.
How can mutation rate affect the evolution of a population?
1. The mutation rates affect the evolution of the population by two factors. Firstly, every new mutation overcomes the effects of survival. When new mutations exist in one or two individuals, they are often lost from the population due to genetic drift, or change. For example, the mutation may never make it to a gamete and may get lost. Secondly, the selective value of the mutation can determine its affect of the population. If it's harmful then the selection would act to reduce its frequency and eventually remove it.
How were neurospora spores treated to increase the mutation rate?
They were (and still can be) shot with X-rays. This heightens mutation rate is Neurospora spores.
What is Clock rate in router?
Data Generating Capability of a Device is called Clock Rate. If the clock rate is high, the processing will be slow down. If the clock rate is low, the processing will be high.
What factors affect the rate of diffustion of one gas through another?
Some factors are:- temperature- pressure- molecular size- concentration
What factors affect the diffusion rate?
Diffusion refers to the process where substances from a highly concentrated area move to a place with a lower concentration. The three factors that affect the rate of diffusion are temperature, concentration gradient and the molecular weight of the substances.
