0
"Molecular clocks" can be used to estimate the time at which two lineages diverged. Often, the calibration of the clock uses fossil evidence to gauge a timeframe for the existence of a common ancestor of a number of lineages. From this, an average mutation rate can be calculated. This average mutation rate can then be used to estimate the timeframe for further branching points in the genealogy of the lineages in question.
For instance, fossil evidence could be used to establish a timeframe for the existence of a common ancestor to all great apes. By dividing the sum of all differences in a particular genomic sequence for all great apes by the time between then and now, we get an average rate. We can then take the differences between that genomic sequence in men and Neanderthals to estimate when Neanderthals diverged from us.
Still curious? Ask our experts.
Chat with our AI personalities
Coach
Fran
ProfessorAdd your answer:
Earn +20 pts
What is time rates?
A rate is often the proportion of two quantities where the second quantity is one unit of measure. Kilometres (or miles) per hour would be a [time] rate of displacement - otherwise known as speed. But there are many rates where the denominators is not time. Litres per kilometre, as a measure of fuel consumption for vehicles or miles per gallon for fuel efficiency for cars, or grams per square metres for paper are all examples of such rates. Sometimes the variable of interest is a function of several variables - one of them being time. For example, total interest is a function of the amount borrowed, the interest rate and the time. Where the context does not make it clear, the phrase "time rate" is used to define which variable is the denominator.
How much is england money worth in the us?
Exchange rates change all the time; to get current exchange rates, go to an online currency calculator, for example, xe.com.Exchange rates change all the time; to get current exchange rates, go to an online currency calculator, for example, xe.com.Exchange rates change all the time; to get current exchange rates, go to an online currency calculator, for example, xe.com.Exchange rates change all the time; to get current exchange rates, go to an online currency calculator, for example, xe.com.
How do you measure absolute time?
Since there is no such thing as absolute time, there is no way to measure it.
What do kilometers per hour measure?
Speed. Kilometre measure distance, and hour is a measure of time. Distance / Time = Speed.
What time of year are New Zealand suicide rates highest?
New Zealand suicide rates are probably highest during the winter.
