AP BIOLOGY

THE MOLECULAR BASIS OF INHERITANCE

DNA MAKES RNA MAKES PROTEIN

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
A codon is found on which molecule?
A
mRNA
B
tRNA
C
rRNA
D
DNA
Explanation: 

Detailed explanation-1: -A sequence of 3 nucleotides on the mRNA make up a codon and this codon is recognized by the complimentary nucleotide sequence called the anticodon present on the tRNA molecule.

Detailed explanation-2: -The messenger RNA contains many such codons, with a series of three bases followed by three more bases, and then three more bases, and so on. Each codon instructs the cell to start the creation of a protein chain, to add a specific amino acid to the growing protein chain, or to stop creation of the protein chain.

Detailed explanation-3: -It is the messenger RNA codon that carries the message specifying a certain amino acid; it is the transfer RNA that transfers that amino acid to the growing protein chain. The tRNA anticodon is a sequence of three nucleotides that are the complement of the three nucleotides in the mRNA codon.

Detailed explanation-4: -Codons are present on an mRNA or DNA. They are sequences of three nucleotides that code for a specific amino acid. Anticodons are present on the tRNA (transfer RNA) molecules that help transfer or bring in the amino acids to the mRNA during the translation process.

Detailed explanation-5: -A sequence of three consecutive nucleotides in a DNA or RNA molecule that codes for a specific amino acid.

There is 1 question to complete.