Table of Contents
Why is the sequence of nucleotides in DNA important?
The sequence of nucleotides that makes up the DNA holds codes for putting amino acids in order, or making proteins. The genetic code contains the instructions for making all of the necessary amino acids that are used to make proteins. Proteins are needed for every aspect of life.
What determines the order of nitrogenous bases in DNA?
Answer: The four types of nitrogen bases are adenine (A), thymine (T), guanine (G) and cytosine (C). The order of these bases is what determines DNA’s instructions, or genetic code. The bases on one strand pair with the bases on another strand: adenine pairs with thymine, and guanine pairs with cytosine.
Why are nitrogenous bases important to nucleobases?
Nitrogenous Bases – Definition and Structures. The nitrogen bases are also called nucleobases because they play a major role as building blocks of the nucleic acids deoxyribonucleic acid ( DNA) and ribonucleic acid ( RNA ). There are two major classes of nitrogenous bases: purines and pyrimidines.
Where are the nitrogen bases found in a strand of DNA?
To form a strand of DNA, nucleotides are linked into chains, with the phosphate and sugar groups alternating. The four types of nitrogen bases found in nucleotides are: adenine (A), thymine (T), guanine (G) and cytosine (C). The order, or sequence, of these bases determines what biological instructions are contained in a strand of DNA.
Why are the sequences of the bases in a DNA molecule?
The sequence of bases in the DNA determines the sequence of amino acids in the protein, which determine how the protein can fold and what its function will be.
How are the three bases of a nitrogenous base read?
Rather, each nitrogenous base is read as a unit, with two other bases. These three-base information packets are called codons. Each codon specifies a certain amino acid. Put together in proper order and folded into shape, a chain of amino acids creates a protein.