LABORATORY REVIEW
MOLECULAR BIOLOGY
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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the amount of glucose present in the cell
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the order of genes expressed in the chromosomes
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the order of nitrogenous bases in DNA
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the random addition of amino acids from the tRNA
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Detailed explanation-1: -Therefore, proteins are long chains of amino acids held together by peptide bonds. 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-2: -Like words in a sentence, the DNA sequence of a gene determines the amino acid sequence for the protein it encodes. In the protein-coding region of a gene, the DNA sequence is interpreted in groups of three nucleotide bases, called codons. Each codon specifies a single amino acid in a protein.
Detailed explanation-3: -The sequence of basis on the DNA molecule is what directs the sequence of amino acids in the protein molecule-that’s how it all links together! So, the sequence of bases in DNA codes for the sequence of amino acids of a protein.
Detailed explanation-4: -What does the Order of Nitrogenous Bases in DNA Determine? The order of nitrogenous bases in DNA is complementary to each other. The order of nitrogenous bases in DNA is arranged in such a way that they code for the protein molecule (that is Amino acids).