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.
True. The greek view of criticism is different from the common everyday sense.
The determination of the exchange rate is made through the currency market. The exchange rate as the price of a currency is established, as in any other market, by the meeting of supply and demand of currencies. If you analyze, for example, a hypothetical situation, in which there are only two currencies the euro and the dollar. The demand for dollars (supply of euros) arises when consumers in different European countries need dollars to buy goods from the United States. In the same way dollars are needed if a European company wants to buy a building in New York, when a German citizen travels as a tourist to San Francisco or if a Swedish company buys shares in a US entity, but there may still be an additional reason to demand dollars that is pure speculation, that is, the thought that the dollar will rise in value against the euro will cause the demand for dollars to rise.
If the opposite is analyzed, the supply of dollars (demand for euros), this is done by all those companies and citizens who need euros for their needs (basically the same ones that we have analyzed before, purchase of goods and services, investments and speculation. )
The balance in a competitive market between supply and demand will mark the price of the dollar against the euro or what is the same the price of the euro against the dollar. In currency markets depreciation is known as the decline in the price of one currency over another.
Answer:
b) anorexia nervosa bulimia nervosa
Jenny thinks she is fat and refuses to eat despite being severely underweight. Kevin periodically eats three entire pizzas and then uses laxatives to remove all the food from his system. Based on this information, Jenny most likely has <u>anorexia nervosa</u> and Kevin most likely has <u>bulimia nervosa</u>. Group of answer choices a.bulimia nervosa; b.anorexia nervosa bulimia nervosa; c.a binge-eating disorder anorexia nervosa; d.bulimia nervosa anorexia nervosa; e.a binge-eating disorder
Explanation:
Anorexia nervosa is an eating disorder occurs most often in adolescent girls. The problem is found as refusal of food to maintain normal body weight b reducing food intake, especially fats and carbohydrates. As Jenny thinks she is fat and refuses to eat despite being severely underweight she has <u>anorexia nervosa.</u>
Bulimia nervosa is an eating disorder that involves bingeing on food repetitively. To compensate for this behaviour m they come up with forced vomiting,excessive exercise and use of taxatives and diuretics. Their purging behaviour are often kept secret because the feel guilt and shame for their lack of self confidence. As Kevin periodically eats three entire pizzas and then uses laxatives to remove all the food from his system he most likely has <u>bulimia nervosa</u>.
Can I please have the poem and a picture of the painting so I can answer
