Answer;
-Allele frequency change
In single-gene traits, natural selection can lead to allele frequency change.
Explanation;
-Allele frequencies can change over time within a single population, and frequently differ between populations. This change is due to four different processes: mutation, selection (natural and artificial), gene flow and genetic drift.
-Random forces lead to genetic drift. Sometimes, there can be random fluctuations in the numbers of alleles in a population. These changes in relative allele frequency, called genetic drift, can either increase or decrease by chance over time.
Fossil fuels coal<span>, </span>petroleum, and natural gas <span>are our main sources of energy
, these sources gives us energy and producing the vast majority of fuel,</span>electricity<span>, and heat used by people across the globe but cause the global warming and increase the temperature of the earth
hope it helps</span>
Light is the energy source for plants synthesis of simple sugar in plants.
That'll be guanine. If you look up "pyrimidine" in google, it will tell you the two nucleotides that are pyrmidines are cytosine and thymine. So that leaves guanine.
