Explain briefly the hershey-chase experiment?

Q: Why is the davson Danielli model wrong?

A: The Davson–Danielli model also known as paucimolecular model of the plasma membrane was proposed in…

Q: What are the conclusion(s) of the Hershey and Chase experiment?

A: Hershey and Chase Experiment - Hershey and Chase Experiment is also called as Blenders Experiment…

Q: What is a spontaneous mutation, and why are spontaneous mutations rare?

A: The mutation is the sudden deleterious effects in the DNA sequences, they can arise when the DNA is…

Q: How do we know that mutations occur spontaneously?

A: The molecule which determines the traits or characters of an organism is known as the genetic…

Q: how Spontaneous Mutations Arise?

A: A spontaneous mutation refers to the alteration in the genome due to the malfunctioning of the…

Q: could Nirenberg and Matthaei have substituted RNA polymerase instead of polynucleotide phosphorylase…

A: The scientist Marshall Nirenberg and Heinrich J. Matthaei designed an experiment to elucidate the…

Q: What are  transposons?

A: Genes are the stretch of DNA present in the linear order on the chromosomes. Each gene occupies a…

Q: What is the difference between transposons and retrotransposons?

A: All cellular systems are controlled by proteins. Proteins are synthesized by the cell by a process…

Q: Why do transposons jump?

A: A transposon is defined as a sequence of DNA (gene) that is able to insert itself or make a copy of…

Q: Briefly explain the frameshift mutation ?

A: Mutation can be defined as the change that occurs in the DNA sequence which is caused by mistake or…

Q: Describe the role of 15N in the Meselson–Stahl experiment.

A: DNA (deoxyribonucleic acid) is a double helix and its replication was proposed to occur by three…

Q: List some common causes of spontaneous and inducedmutations.

A: Spontaneous mutation is defines as the error or changes occur in natural biological process of any…

Q: Describe the chemical nature of transforming principle?

A: Transforming principle is a principle which was stated before DNA was identified as the transforming…

Q: What was the benefit of using radiolabeled aminoacids in the Nirenberg and Leder experiment?

A: Nirenberg and Matthaei performed the experiment in 1961 which explained how the sequence of amino…

Q: Meselson & Stahl Experiment?

A: Replication means the process of duplication. The central dogma explains the DNA (Deoxyribonucleic…

Q: Why transposons are called jumping genes?

A: A sequence of DNA sequence that has the ability to move or insert itself at a new location in the…

Q: How can the genes be identified?

A: Genes are the basic units of hereditary information encoded by the DNA in the form of nucleotides.…

Q: Describe meselon AND STAHL'S EXPERIMENT?

A: DNA was discovered by Friedrich Meischer from the nucleus of the pus cells obtained from discarded…

Q: Why Spontaneous mutation rates are low ?

A: Any heritable change in the genetic makeup of an individual is called as mutation. It is a sudden…

Q: What is a driver mutation?

A: Mutations are defined as the change in the sequence of DNA of an organism due to any environmental…

Q: How can you still get a functional protein from frameshift mutation?

A: A mutation is a change in a person's genetic code. Changes as small as the replacement of a single…

Q: What is the effect of operator mutants?

A: Step 1 Genetic material has a number of functional units called operons, like- lac operon, trp…

Q: What is mutagen? Give an example?

A: Genetic is a branch of science that deals with genes, DNA, alleles, genetic variation, heredity, and…

Q: What does supercoiling accomplish?

A: Supercoiling basically refers to the winding of the DNA strand and serves the function of compacting…

Q: What is the result of superantigens?

A: Antigens (Ag) are toxins or pathogens. The immune system produces antibodies (Ab) against them as an…

Q: What are molecular chaperones and why are they necessary?

A: DNA is the genetic material in most living organisms. It is the information hub of the cell that…

Q: What is transformation? How did Avery and his colleagues demonstrate that the transforming principle…

A: In some species of bacteria transformation is naturally occurring process. Transformation is used as…

Q: What is the experiment that helped Hershey and Chase recognize DNA as a genetic material? Explain in…

A: Introduction: The undeniable proof that DNA is the genetic material reached from the experiments of…

Q: What are gene chips ?

A: Gene chips, also known as DNA microarrays, are powerful tools used to measure gene expression. By…

Q: What is qPCR?

A: Polymerase Chain Reaction (PCR) is a technique that gives us multiple copies of desired DNA…

Q: What is the meaning of conjugation in biology?

A: Biology is the division of science that deals with life and living organisms, like their structure,…

Q: What is point mutation? Give one example.

A: Mutations are the alterations or the changes that occur in the DNA. Mutagens are the agents that are…

Q: What are molecular chaperones or chaperonins ?

A: The protein is synthesized and attains full conformation for the functioning of the matured protein.…

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: What are the applications of esterase enzymes?

A: Esterases Esterase enzymes hydrolyze esters into acid and alcohol. Come under the class of enzyme…

Q: What is anti terminator?

A: Transcription begins when the RNA polymerase enzyme binds with the promoter site in an operon system…

Q: What Is a Molecular Motor?

A: A motor is a machine that converts energy from one form to another. The converted energy is used to…

Q: What is fusion mutation?

A: Introduction Mutation can be defined as the change in the DNA sequence or a structural change…

Q: how many methods for detecting point mutations?

A: A single base pair is changed in a point mutation. Point mutations can also have three different…

Q: How could site-directed mutagenesis be used to investigate the kinetic properties of an enzyme?

A: Site-directed mutagenesis is a molecular biology method that is used to make specific and…

Q: How would you modify the Ames test to evaluate physical mutagens?Would it be necessary to add the…

A: Physical mutagens involve the radiation like ultraviolet rays, X rays, gamma rays and alpha and beta…

Q: What conclusions can Melia and Sophie make about their phage Zucchinibread from this experiment?

A: * PCR also  called polymerase chain reaction is a  molecular invitro metho of producing many gene…

Q: What did the HapMap Project accomplish?

A: The development of the haplotype map was the major aim of the International HapMap Project.…

Q: Give the Summary of the Hershey–Chase experiment ?

A: Alfred Hershey is an American bacteriologist and geneticist. Martha Chase is an American…

Q: Could you perform the Ames test with a strain of bacteria that was auxotrophic for something other…

A: Ames test is a test used for the determination of the mutagenicity of a chemical compound. It was…

Clinical Pharmacology

Pharmacology is a discipline of medicine that studies how medications interact with the systems and processes of living organisms, focusing on drug action mechanisms as well as therapeutic and other purposes.