After a molecule of DNA replicates, two double-stranded molecules are formed. This results in a total of four strands of DNA.
During meiosis when the spindle fibers pull apart the chromosomes this happens at radon so there are different variations of genes being pulled apart
Solution:
Nitrogen is important because, it helps us grow crops, and it produces grass for animal. It comes from lightning and is named nitrogen fixation
By which free nitrogen (N2) is extracted from the atmosphere and converted (fixed) into nitrogen compounds which are plant nutrients (fertilizer). In nature, this process is carried out by certain bacteria (present in the root nodules of legumes such as beans and peas), blue-green algae, and the lightning flash.
Thus the Nitrogen form the atmosphere the biotic part to the ecosystem converted into the biotic part.
Chemistry as a subject has a significant importance in our daily lives and the society in general. Everything on the earth is made of chemicals. ... It also describes various chemical elements preset in the environment, their reactions, and effects on the environment.
<span>The main difference between adaptice radiation and other forms of speciationn is : Adaptive radiation happens over a relatively short time.
In natural process of speciation, the perfect mutation could occur within millions of years. In adaptive radiation, the mutation could instantly happenes not long after the radiataion process</span>
