There are 3000 nucleotides in two strands of the DNA molecule. Information about the structure of a protein is encoded on one of the strands. Count how many amino acids are encoded on one DNA strand.
One chain will have 1500 nucleotides. Each amino acid is encoded by three nucleotides (triplet), so 1500 nucleotides encodes 500 amino acids.
Remember: The process of learning a person lasts a lifetime. The value of the same knowledge for different people may be different, it is determined by their individual characteristics and needs. Therefore, knowledge is always needed at any age and position.