Which component of the dna molecule provides instructions for protein production?
a deoxyribose sugar molecules
b sequence of nitrogen bases

B sequence of nitrogen bases

Explanation:

The instructions that determine all the characteristics and functions of an organism are found in its genetic material: DNA (deoxyribonucleic acid).

The knowledge of DNA, its structure and function, was decisive for the development of modern biotechnology.

Proteins are macromolecules that fulfill varied functions. There are structural proteins, others are enzymes, others carry oxygen such as hemoglobin, there are proteins involved in immune defense, such as antibodies, others perform functions of hormones such as insulin, etc.

Just as DNA is composed of nucleotides, proteins are composed of amino acids. There are 20 different amino acids, and each protein has a particular amino acid sequence that depends on the sequence of nitrogen bases present in the DNA.

The protein synthesis process basically consists of two stages: transcription and translation. In the first stage, the "words" (genes) written in the DNA in the language of the nucleotides are copied or transcribed to another molecule, the messenger RNA (mRNA). Then, in the next stage, the mRNA is translated into the language of the proteins, that of the amino acids. This flow of information is known as the "central dogma of biology."

a- all cells come from pre-existing cells