THE MOLECULAR BASIS OF INHERITANCE
DNA MAKES RNA MAKES PROTEIN
|
Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
|
|
|
Codons determine the order of the amino acids a protein
|
|
|
They help bond the nucleotides together
|
|
|
Codons pair with the amino acids
|
|
|
Codons and DNA polymerase help to synthesize ribosomes
|
Detailed explanation-1: -Each group of three bases in mRNA constitutes a codon, and each codon specifies a particular amino acid (hence, it is a triplet code). The mRNA sequence is thus used as a template to assemble-in order-the chain of amino acids that form a protein.
Detailed explanation-2: -A sequence of three consecutive nucleotides in a DNA or RNA molecule that codes for a specific amino acid. Certain codons signal the start or end of translation.
Detailed explanation-3: -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. For instance, a messenger RNA codon, GCA, signals the addition of the amino acid alanine to the protein chain.
Detailed explanation-4: -The actual order of the amino acids in the protein is called its primary structure and is determined by DNA. The order of deoxyribonucleotide bases in a gene determines the amino acid sequence of a particular protein.
Detailed explanation-5: -Reading frame determines how the mRNA sequence is divided up into codons during translation.