Answer:
Check explanation.
Explanation:
A border is a line showing the boundaries between states or countries. So, a border state can be likened to a state that marks the territory of one country. Border States are those states that do not that did not want to join Confederacy, they are also known for their involvement in slave trading. Some of the border states are Maryland, Delaware, West Virginia and so on.
The importance of the location of Maryland border and that of Delaware is that they both contributed to the success of the Union because of their loyalty towards the Union during the war. Also, these border states have good lands for the production of crops, they have fertile land for farming which also contributed immensely during the war.
The first description of the DNA (deoxyribonucleic acid)chain was done by Watson and Crick in 1953, the nucleotides that constitute the DNA are four: cytosine (C), guanine (G), timine (T) and adenine (A). When doing a model is essential to remember that cytosine ONLY joins guanine and timine only link adenine, this is due to the size and chemical properties of each molecule. Later, another related and similar and molecule was discovered, the ribonucleic acid or RNA, which also is constructed by nucleotides.
In both cases, the nucleotides are compound of 3 main components: a nitrogen base, a pentose and a phosphate. When the molecule lacks the phosphate group, is called nucleoside. Depending on the chain ( DNA or RNA) the nitrogen base derives from purine (adenine and guanine) or pyrimidine (cytosine or timine) just in the RNA instead of timine is uracil (U)
The union is established between adjacent molecules through the phosphate, while among each other through the nitrogen base-remember C=G and T or U=A. The core of each molecule is the pentose. Therefore the best representation of the molecule is attached
References
Watson, J. D., & Crick, F. H. (1953, January). The structure of DNA. In Cold Spring Harbor symposia on quantitative biology (Vol. 18, pp. 123-131). Cold Spring Harbor Laboratory Press.
Experimental. Dr James used an experimental model of research for his study which involved facial symmetry. Experimental studies basically comprise of an independent and dependent variable. The goal is to observe if the independent variable has an effect on the dependent variable, and if it has how strong and where is it heading? This is how an experimental study is performed.