Which of the following enzymes has 5' to 3' exonuclease activity?

Q: Define exon and intron.

A: Ribonucleic acid (RNA) is a nucleic acid found in both the nucleus and cytoplasm. It can be genetic…

Q: Translate the following mRNA nucleotide sequence into an amino acid sequence, starting at the first…

A: The deoxyribonucleic acid (DNA) is the hereditary material that transmits the genetic information…

Q: Describe source of the ribonuclease enzyme and its production.

A: Ans: Ribonuclease enzyme: These are the enzymes that are responsible degradation of RNA.

Q: what is a replicase enzyme (protein)?

A: Replicase is an enzyme that has the capability to replicate nucleic acids. Enzymes are usually…

Q: Ribonuclease A cannot catalyze the hydrolysis of DNA. which of the following statements explains…

A: Deoxyribonucleic acid (DNA) is a polymer made up of two polynucleotide chains that coil around each…

Q: Why is it important to put regulatory mechanisms in place at specific portions of the pathway from…

A: The flow of the information takes place from DNA to the proteins. Proteins act as structural…

Q: What enzyme is responsible for forming peptide bonds between amino acids? Aminoacyl-tRNA synthetase.…

A: Translation is the process of synthesis of protein in the cytoplasm.

Q: What is the unique feature of ribozyme function? Give two examples.

A: Ribozymes are the ribonucleic acid molecules having the catalytic functions and are found rarely. A…

Q: Is it reasonable that codons for the same amino acid have one or two nucleotides in common? Why or…

A: Proteins are synthesized via translation of mRNA> The tripeptide sequence on the mRNA that codes…

Q: What is the action of Ribonuclease?

A: Ribonuclease:                        RNase ~ commonly abbreviated as Ribonuclease            A type…

Q: 12. RNase A is a ribonuclease enzyme that degrades single stranded RNA. There are three key amino…

A: RNaseA catalysis is a typical example of acid base catalysis. Histidine is a common amino acid in…

Q: Assuming you have determined the sequence of a certain enzyme/protein product, how will you identify…

A: Proteins are made up of a string of amino acids the sequence of which is encoded by DNA. Each amino…

Q: How does a disorder in mitochondria lead to diabetes? What kind of diabetes is it?And Which two…

A: Mitochondrial disorders:These disorders harm the proper functioning of mitochondria (powerhouse of…

Q: Translate the following mRNA nucleotide sequence into an amino acid sequence, starting at the second…

A: The mRNA (messenger ribonucleic acid) is synthesized from a DNA (deoxyribonucleic acid) template.…

Q: Which of the following is the polyadenylation signal sequence? AAAAAA O AAUAAA O AAAUAA AAUUAA

A: Polyadenylation signal sequence :- is the signal sequence needed to add poly A tail at 3' end of…

Q: The terminal inverted repeats of a DNA transposon or a retrotransposon bind an enzyme of what…

A: Transposons are mobile elements present in the genome of an organism. There are responsible for the…

Q: What do you mean by initiator codon ?

A: A codon is a sequence of three DNA or RNA nucleotides that corresponds with a specific amino acid or…

Q: Does a gene sequence carry a mutation that might cause adisease?

A: Mutation is defined as any sudden change in the nucleotide sequence of genes. It may also be defined…

Q: what are exceptions found in mitochondria to theuniversal genetic code.?ac

A: The DNA is the genetic material that is passed from one generation to the next generation. It is…

Q: What is the difference between eukaryotes and prokaryotes in terms of exons and introns?

A: The intervening sequence or the non-coding region in the nucleotide sequence located between the two…

Q: Why is it advantageous to have a mechanism to override the effect of stop codons in protein…

A: In the central dogma,  the Ribonucleic acid (RNA) is formed from the template of Deoxyribonucleic…

Q: What is the role of endonuclease enzyme ?

A: Several enzymes are involved in all the biochemical reactions happening in the body. These enzymes…

Q: Which of the following is not possible?a. A nonsynonymous mutation in an intronb. A nonsynonymous…

A: Nonsynonymous mutations are those mutations that can change the protein encoded by mRNA and are…

Q: What is endonuclease enzyme ?

A: An enzyme is the substance, biological catalyst in living organism which accelerate chemical…

Q: Can the same enzyme esterify more than one amino acid to its corresponding tRNA?

A: Aminoacyl transferases are the enzymes which are responsible for the attachment of the main acid to…

Q: Why are introns called introns?

A: In eukaryotes the template strand of DNA gets transcribed into pre-mRNA by the process known as…

Q: What does it mean to act in trans?

A: Trans basically refers to the action different from another molecule. This term is widely used in…

Q: Refer to the codon diagram on. Which of the following is a codon that will terminate translation?*

A: A termination codon or a stop codon is a group of three amino acids that is present in the mRNA that…

Q: The following enzyme has an exact integer number of turns. What is the length and amount of amino…

A: Enzyme are usually composed of proteins while some enzymes are ribozymes (RNA enzymes). Proteins are…

Q: Why can the genetic code be qualified as a “degenerate code”?

A: The genetic code is referred as the nucleotide sequence of nitrogenous base, which specifies the…

Q: What is conversion of ribonucleotides to deoxyribonucleotides?

A: Introduction: A nucleoside and a phosphate make up nucleotides, which are organic molecules. They…

Q: A sequence of mRNA is mutated such that there is no "start" codon. Which of the following is a…

A: The ribosomal binding on the mRNA requires the presence of Shine Dalgarno or kozak sequence upstream…

Q: Which of the following RNAS is the product of transcription?

A: Transcription is the process of making an RNA copy of a gene sequence

Q: For the following DNA bases, give the complementary mRNA code that would be transcribed from these…

A: The process of formation of m RNA with the help of DNA is called transcription. During the formation…

Q: What is an intron and an exon

A: Messenger RNA (mRNA) is a single-stranded RNA molecule that is complementary to one of the DNA…

Q: Is ribonuclease an enzyme or protein?

A: Proteins and enzymes have a specific function in the organism. So they are very important in the…

Q: Where does the energy of such reaction catalyzed by an RNA polymerase come from?

A: RNA polymerase catalyze the DNA dependent RNA synthesis. It catalyzes the process of transcription.

Q: What is the role of enzyme “Ligase” in genetic Engineering?

A: Recombinant DNA technology is not a simple process. It aims at isolating desired DNA sequences from…

Q: Which of the following is an RNA nucleoside?

A: Nucleosides- these are the compounds which contains only sugar and base and no phosphate groups are…

Q: Select two primers from the list below that would exclusively amplify exon 3 in

A: Polymerase chain reaction was developed by Karry Mullis . It utilizes the ability of DNA to make…

Q: What feature of eukaryotic translation is especially responsible for its efficiency?

A: Genetics is the investigation of heredity. Heredity is a natural interaction whereby a parent passes…

Q: You are a physician who has diagnosed a patient with a genetic condition that results in telomerase…

A: Telomere is the sequence of repetitive nucleotides present at the ends of the chromosomes. Telomeres…

Q: Why do bacteria use formylated methionine in the initiator tRNA, while eukaryotes do not?

A: Protein is a macronutrient that is vital for building muscle mass. It is normally found in creature…

Q: Explain the nucleoside diphosphates (NDPs) ? How it is formed ?

A: Nucleotides are the genetic material in living organisms. They are packed in the nucleus in…

Q: What are the four major types of introns?

A: Introns are the non-coding sequence found in the genome. These are nucleotide sequences that do not…

Q: Describe two special reaction sites on the tRNA

A: Full name of tRNA is transfer RNA. It acts as the supplier of amino acid to ribosome at the time of…

Q: In any given species, there are at least how many types of aminoacyl tRNA synthetases? a. 20 b. 40…

A: Amino acids are the organic compounds made up of an amino group (−NH2), a carboxyl group (−COOH),…

Q: Describe the mode of action of ribonuclease enzyme.

A: Ribonucleases or RNases is a group of enzymes that catalyze the hydrolysis of phosphodiester bond in…

Q: What is AP endonuclease ?

A: Introduction Enzymes are biological catalysts that are proteins. Chemical reactions are sped up with…

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.