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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The amino acid phenylalanine is composed of uracil.
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UUU codes for the amino acid phenylalanine.
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Protein synthesis malfunctions in test tubes.
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Most proteins contain only one type of amino acid.
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Detailed explanation-1: -A protein molecule is made from a long chain of these amino acids, each linked to its neighbor through a covalent peptide bond (Figure 3-1). Proteins are therefore also known as polypeptides. Each type of protein has a unique sequence of amino acids, exactly the same from one molecule to the next.
Detailed explanation-2: -The synthesis of most protein molecules takes between 20 seconds and several minutes. But even during this very short period, multiple initiations usually take place on each mRNA molecule being translated.
Detailed explanation-3: -Amino acids are arranged in proper sequence during protein synthesis according to the instructions transcribed on Ribosomal RNA. Concept: The process of converting the information of genetic data from DNA ( Deoxyribonucleic acid) to RNA ( Ribonucleic acid ) is termed as transcription.
Detailed explanation-4: -It includes three steps: initiation, elongation, and termination.