Which codons encode Histidine?

Unlock all questions

This demo includes only 20 questions. Upgrade to access hundreds of questions, flashcards, exam simulations, and disable ads.

Full question bankExam simulationsFlashcards
From $9.99Unlock all

Test your knowledge with the Campbell Biology Concepts and Connections Quiz. Study with flashcards and multiple choice questions, each question has hints and explanations. Prepare effectively for your biology concepts exam!

Multiple Choice

Which codons encode Histidine?

Explanation:
Histidine is specified by two codons in the standard genetic code: CAU and CAC. Codons are three-nucleotide sequences that encode amino acids, and for histidine the first two bases are fixed as CA while the third base can be either U or C, giving CAU and CAC. The other combinations mix histidine with codons that code for different amino acids (CAG codes for glutamine; CGA codes for arginine), so they don’t both encode histidine.

Histidine is specified by two codons in the standard genetic code: CAU and CAC. Codons are three-nucleotide sequences that encode amino acids, and for histidine the first two bases are fixed as CA while the third base can be either U or C, giving CAU and CAC. The other combinations mix histidine with codons that code for different amino acids (CAG codes for glutamine; CGA codes for arginine), so they don’t both encode histidine.

More Multiple Choice Questions
Subscribe

Get the latest from Examzify

You can unsubscribe at any time. Read our privacy policy