Immune System Quizlet Related

Review Immune System Quizlet related questions and content

Which of the following statements is incorrect?

  • A. BLASTX searches protein databases
  • B. BLASTX use translated nucleotide as the query sequence
  • C. Both TBLASTX and TBLASTN translate query into 6 reading frames
  • D. BLASTN searches protein databases
Correct Answer: D

Rationale: The correct answer is D because BLASTN searches nucleotide databases, not protein databases. BLASTN uses a nucleotide sequence as the query to find similar sequences in nucleotide databases. This is different from BLASTX, which searches protein databases using translated nucleotide sequences (answer A is correct). TBLASTX and TBLASTN translate the query sequence into six reading frames to search for similarities in both nucleotide and protein databases (answer C is correct). BLASTN is specifically designed for nucleotide sequence searches, making statement D incorrect.