When purines are broken down in the body in humans, the end product is uric acid, which is excreted in the urine. A and G undergo slightly different catabolic (i.e., breakdown) processes, but these converge at xanthine. This base is then oxidized to generate uric acid. Normally, as th...
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What is the structure of a nucleotide? What are DNA's four nucleotides, and how do they pair up? (a) What is the structure of a nucleotide? (b) What are DNA's four nucleotides, and how do they pair up? What are the two purines in DNA? Which nucleotide is found in RNA but not...
Purine bases never bond with other purine bases and pyrimidine bases never bond with other pyrimidine bases. Specifically, cytosine always pairs with guanine and adenine pairs with thymine or uracil, depending on whether in a DNA or RNA molecule. This pairing is referred to as specific base ...
1. Adenine (A) - Adenine (6-Adminopurine), C5H5N5, is a purine type of nucleobase, containing two rings of alternating carbon and nitrogen atoms. Adenine (A) always pairs with Thymine (T) to form an A-T pair. 2. Cytosine (C) - Cytosine (2-Oxo-4-adminopyrimidine), C4H5N3O,...
Define the term "auxins" as it relates to growth and development within the field of biology. Define the term Polygenic. Give the definition of the following: purine. In the context of Biology, define the following term: Migration. Define the follo...
A simple point mutation definition is a change in one base in the DNA sequence and can be caused by a variety of internal and external factors. Two types of point mutations can occur - transition and transversion mutations. Transition mutations occur when a purine is switched out with another...
What Is Biochemistry? Biochemistry is the study of the chemistry of living things. This includes organic molecules and their chemical reactions. Most people consider biochemistry to be synonymous with molecular biology. What Types of Molecules Do Biochemists Study?
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