There are 49 nuclear genes that code for tRNA molecules. There are 61 codons for
ID: 80981 • Letter: T
Question
There are 49 nuclear genes that code for tRNA molecules. There are 61 codons for amino acids. The 49 different tRNA molecules can translate all 61 amino acid codons. Answer the following theoretical questions, and explain your answers. Include the names of the amino acids for the codons noted. (6 marks)
A. Could a single type of tRNA molecule be used in the translation of CAC and CAG?
B. Could a single type of tRNA molecule be used to translate AUU and AUA?
C. Could a single type of tRNA molecule be used to translate UCU and AGC?
DO NOT ATTEMPT IF YOU DO NOT SPECIALIZE IN GENETICS
Explanation / Answer
A. Could a single type of tRNA molecule be used in the translation of CAC and CAG?
No. CAC codes for Histidne, where as CAG codes Glumatmine
B. Could a single type of tRNA molecule be used to translate AUU and AUA?
Yes, One tRNA will code for AUU and AUA - Isoleucine
C. Could a single type of tRNA molecule be used to translate UCU and AGC?
No. Two tRNA moelcules needed, even the though the both UCU and AGC code for Serine
Related Questions
Navigate
Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.