[Campbell Biology P.494] What is the primary purpose of "gene annotation" as described in th... | Practice Question

What is the primary purpose of "gene annotation" as described in the text?

  • A: To determine the function of an unknown gene solely based on its phenotype.
  • B: To confirm the expression of relevant RNA from a proposed gene using RNA-seq.
  • C: To identify all protein-coding genes in a sequence and ultimately their functions.
  • D: To compare an unknown protein sequence with known genes from other organisms.

Explanation

The text explicitly states: 'This process, called gene annotation, uses three lines of evidence to identify a gene.' and earlier, 'scientists aim to identify all protein-coding genes in the sequence and ultimately their functions.' This clearly defines the primary purpose of gene annotation.