Explain the significance of the following statement: The functioning of the aminoacyl-tRNA synthetases is referred to as the second genetic code.

Q: What is meant by the statement “The genetic code is universal”? What is the significance of this…

A: Genetic code is the code for the expression or improvisation of proteins which comes from DNA via…

Q: Explain why the translation of a given mRNA can be inhibited by a segment of its complementary…

A: A mechanism of reading and decoding the nucleotide sequences of messenger ribonucleic acid (mRNA)…

Q: Explain how an amino acid is attached to a tRNA via aminoacyltRNA synthetase.

A: An amino acid is the building block of a protein molecule. Amino acids are attached together via a…

Q: Molecular Biology Describe the process of blocking translation initiation by siRNA.

A: The siRNA stands for short interfering RNA. When siRNA meets the mRNA it is supposed to find, it…

Q: DNA in human mitochondria encodes 22 different tRNA molecules. However, 32 different tRNA molecules…

A: Mitochondrial gene expression maintain cellular homoeostasis. Mitochondrial gene expression is…

Q: Aminoacyl-tRNA synthetases are the only component of gene expression that decodes the genetic code.…

A: The protein synthesis involves the synthesis of the polypeptide chain which is catalyzed by several…

Q: The covalent attachment of an amino acid to a tRNA is an endergonic reaction. In other words, it…

A: Introduction  In the protein translation process, the key role is played by the tRNA which…

Q: Describe the processing of pre-tRNA

A: Pre-tRNA (precursor transfer RNA) is a molecule that serves as a precursor to mature tRNA which…

Q: Explain post-translational modification of proteins in general with the types of reactions. Provide…

A: Ans:--PMT's are enzymatic , covalent chemical modification of protiens that typically occur ofter…

Q: Why may tRNA be considered the “interpreter” of the genetic code?

A: Introduction: RNA is a type of nucleic acid that is a genetic material in some viruses. There are…

Q: The following RNA sequence represents a small messenger which can be translated in a prokaryotic…

A: The first step in translating an RNA sequence into a protein is to divide the sequence into codons,…

Q: 28. a. Can a tRNA exist that has the anticodon sequence 5' IAA? If so, which amino acid would it…

A: Transfer RNA (tRNA) molecules contain a sequence of three nucleotides known as the anticodon. It is…

Q: Explain the function of the Shine-Dalgarno sequence in prokaryotic protein translation. Where is it…

A: The process by which prokaryotic cells, such as bacteria, synthesise proteins based on genetic…

Q: What naturally found amino acyl tRNA synthetase can be used to attach 2-aminobutyric acid to a tRNA?…

A: Higher living beings vary in their ability to synthesize the 20 common amino acids. Most bacteria…

Q: What is the significance (or function) of tRNA in protein synthesis? In other words, explain why…

A: transfer RNA or t RNA is a small RNA molecule that participates in the protein synthesis. each t RNA…

Q: Dystrophin is mutated in the disease, causing a codon to change from GGA to UGA. What is the…

A: Dystrophin is a protein that helps keep muscle cells intact.

Q: In how many cases in the genetic code would it NOT be possible to know the amino acid specified by a…

A: DNA or deoxyribonucleic acid is a double-helical molecule consisting of two polynucleotide chains.…

Gene Interactions

When the expression of a single trait is influenced by two or more different non-allelic genes, it is termed as genetic interaction. According to Mendel's law of inheritance, each gene functions in its own way and does not depend on the function of another gene, i.e., a single gene controls each of seven characteristics considered, but the complex contribution of many different genes determine many traits of an organism.

Gene Expression

Gene expression is a process by which the instructions present in deoxyribonucleic acid (DNA) are converted into useful molecules such as proteins, and functional messenger ribonucleic (mRNA) molecules in the case of non-protein-coding genes.