THE MOLECULAR BASIS OF INHERITANCE
DNA MAKES RNA MAKES PROTEIN
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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3
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2
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4
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1
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Detailed explanation-1: -Three is the minimum number of nucleotides per codon needed to encode 20 amino acids.
Detailed explanation-2: -A codon is a DNA or RNA sequence of three nucleotides (a trinucleotide) that forms a unit of genomic information encoding a particular amino acid or signaling the termination of protein synthesis (stop signals). There are 64 different codons: 61 specify amino acids and 3 are used as stop signals.
Detailed explanation-3: -Three codons, UAA, UAG, and UGA, are known as stop codons as they stop the process of translation. If this is a mutation as a stop codon and its finishes prematurely it is called an amber codon. AUG is also known as a start codon, as it initiates the process of translation.
Detailed explanation-4: -Answer and Explanation: tRNA read RNA nucleotides in a triplet. One codon corresponds to three nucleotides. One codon translates to one amino acid.
Detailed explanation-5: -The code: codons. In a DNA sequence, the code for each of the 20 naturally-occurring amino acids consists of a sequence of three nucleotide bases, which we’ll just refer to with three “letters, ” like ATG, or CCC. Recall that A = adenine, C = cytosine, T = thymine (or U = uracil in RNA), and G = guanine.