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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Answer:
b, c, d
Explanation:
it makes it smell better, adds flavor to it and keeps it fresh for a longer time.
Please find attached the labelled diagram
Explanation:
Please find attached the labelled diagram showing the parts
- Aorta - main and largest artery which branches into smaller arteries
- Artery - carry blood from heart to all other parts of the body
- Arterioles - carry blood and oxygen into smallest blood vessels
- Cells - single layer of endothelial cells in the walls of the capillary
- Capillaries - Carry oxygen to cells of tissues and organs
- Venules - carry blood flows from capillary into small venules
- Inferior Vena Cava - carry blood from legs and abdominal cavity to the bottom of right atrium
- Veins - blood vessels that carry blood to the heart
- Superior Vena Cava - carry blood from the brain and arms into the top of right atrium
Answer:
A holster monitor records a cardiac activity while a patient is ambulatory for at least a event button period.
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