1.What is true according to the adaptor hypothesis? a.the anticodon and amino ac
ID: 226060 • Letter: 1
Question
1.What is true according to the adaptor hypothesis?
a.the anticodon and amino acid have no relationship
b.A given tRNA can carry any of the twenty amino acids
c.the position of an amino acid within a polypeptide is determined by the binding of mRNA with a tRNA carrying .specific amino acid
d. an amino acid recognizes the codon in mRNA
2. A researcher studying hemoglobin predicts that a histidine within the protein is important for binding oxygen. They created two point mutation in a codon for histidine (CAU) to one for lysine (AAA). However. The mutant hemoglobin still binds oxygen just as well as the wild-type and has no other apparent changes. This type of mutation is called
a.suppressor mutation
b.neutral
c.nonsense
d.silent
e.frameshift
Explanation / Answer
Ans 1 C. The position of amino acid within a polypeptide is determined by the binding of mRNA with a tRNA carrying specific amino acid.
This adaptor hypothesis was given by Francis crick im mid 1950s.
Coupling between the adjacent amino acids detemine the sequence of these molecules in a polypeptide chain. And this is carried by the tRNA molecule that binds to specific mRNA.
Related Questions
Navigate
Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.