The process of marking genes in a DNA sequence is called-

Correct option is A

The correct answer is (a) Annotation.
· Gene annotation is the process of identifying and marking genes in a DNA sequence. It involves identifying the locations of genes and all the coding regions in a genome and determining what those genes do.
· Annotation is a crucial step in genome analysis, as it helps researchers understand the function of genes, identify coding and non-coding regions, and predict the structure of proteins encoded by these genes.
· Annotation can be done manually or through automated computational tools and is an important part of bioinformatics and genomics research.
Additional Knowledge:
· Proteomics: Proteomics is the study of proteins, particularly their structure and function, but it does not involve marking genes in DNA.
· Sequence assembly: This is the process of assembling short DNA sequences into longer sequences to reconstruct the original DNA molecule but is not the same as annotation.
· Gene expression: Gene expression refers to the process by which information from a gene is used to synthesize proteins or RNA, and is unrelated to the process of marking genes in DNA sequences.