AP BIOLOGY

HEREDITY

MUTATIONS

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Which two thing are found on a molecule of tRNA?
A
amino acids; anticodons
B
amino acids; codons
C
ribose sugar; proteins
D
deoxyribose sugar; codons
Explanation: 

Detailed explanation-1: -A tRNA molecule has an “L” structure held together by hydrogen bonds between bases in different parts of the tRNA sequence. One end of the tRNA binds to a specific amino acid (amino acid attachment site) and the other end has an anticodon that will bind to an mRNA codon.

Detailed explanation-2: -Each tRNA molecule has two distinct ends, one of which binds to a specific amino acid, and the other which binds to the corresponding mRNA codon. During translation, these tRNAs carry amino acids to the ribosome and join with their complementary codons.

Detailed explanation-3: -tRNA molecules bind to the ribosome in a solvent-accessible channel at the subunit interface. Three binding sites for tRNA, called the aminoacyl site (A site), peptidyl site (P site), and exit site (E site), have been identified on both the large and small subunit (Fig. 1).

Detailed explanation-4: -A particular site on each tRNA forms a three-baseanticodon that is complementary to a specific codon on the mRNA.

Detailed explanation-5: -The tRNA molecule, on the other hand, has an anticodon, which will match its complementary codon on the mRNA. There are numerous tRNA molecules that help to build a protein during this process, and each individual tRNA molecule only carries one amino acid, which matches its complementary codon on mRNA.

There is 1 question to complete.