Answer:
Chemically altered nucleosides derived from canonical ribo-or deoxyribonucleoside-derivatives of adenosine, cytosine, guanosine, and uridine or thymidine are found in all types of nucleic acids, DNA and RNA. They are particularly abundant in noncoding RNAs, such as transfer RNAs and ribosomal RNA of higher organisms. By increasing the structural diversity of nucleic acids, modified nucleosides play important roles in gene expression and in regulating many aspects of RNA functions. They also contribute to nucleic acid stability and to protection of genetic materials against virus aggression. In this chapter we present a historical overview of the discovery, occurrence, and diversity of the many naturally occurring modified nucleosides that are present in both DNA and RNA of diverse organisms. We also briefly describe the different enzymes that accomplish these nucleic acid ‘decorations’. More information about the structure, function, biosynthesis and evolutionary aspects of selected modified nucleosides in DNA and RNA and their corresponding modification enzymes can be found elsewhere in this volume.
Explanation:
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That is called Hypoxemia. Hypoxemia<span>s a sign of a problem related to breathing or circulation, and may result in various symptoms, such as shortness of breath.</span>
The answer is true examples are heroin,cocaine,acid etc those are drugs you do not need but choose to take
The depressed and anxious individual. causes the release of unwanted enzymes that can harm the body.
<h3>What is an anxiety stomachache like?</h3>
The most common fact is that anxiety releases adrenaline and cortisol, causing the body to produce excess acid from gastric juices. The high acidity makes the entire digestive system irritated and causes pain, nausea and vomiting – it can even cause an ulcer.
<h3>What anxiety does not cause ha?</h3>
Researchers from University of Edinburgh, Death or depression who will suffer from stress, anxiety will increase the risk of computer illness. It is the first time that scientific research has established links between high levels of emotional stress and death caused by liver problems.
With this information, we can conclude that the individual is depressed and anxious. causes the release of unwanted enzymes that can harm the body.
Learn more about emotional health in brainly.com/question/13179079
Answer:
negative consequences ,healhty choices ,poor health, impact the health of others
Explanation:
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