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 to Know about the human genome project
A: The sum of the approaches to investigating, managing, and storing biological knowledge. Biological…
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: Explain the significance of the Miller-Urey experiments
A: The Miller-Urey experiment was the experiment in which the conditions were created that present on…
Q: explain why controls are crucial in biological studies?
A: An experiment is a research approach to validate a hypothesis based on evidence and results. An…
Q: What was the hypothesis of Stiling and Drake’s experiment?
A: Stiling and Drake conducted their experiment to study the elevated carbon dioxide's atmospheric…
Q: how can we genetically manipulate bacteria?
A: Genetic engineering is the direct manipulation of DNA to alter an organism’s characteristics…
Q: Explain briefly the hershey-chase experiment?
A: The confirmation that DNA is the genetic material was given by the Hershey-Chase experiment. The…
Q: Explain how Frederick Griffith's experiment discovered the transforming principle.
A: The bacteria from the III-S strain were destroyed by heat, and the rest were combined with bacteria…
Q: Why is it important count cells in research?
A: When seeding cells for later studies, determining immortalization or transformation, monitoring cell…
Q: Explain how heat-killed type IIIS bacteria in Griffith’s experiment genetically altered the live…
A: Griffith experimented on S and R strains of the bacteria that causes pneumonia in mice. The S…
Q: how is HIV related to biochemistry?
A: HIV stands for Human Immunodeficiency Virus. It is a positive strand enveloped RNA virus, belongs to…
Q: Define transformation in griffin's experiment.
A: Griffith experiment changed the understanding of genetic material and DNA was accepted as the…
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: what is central dogma of biology? Is it entirely accurate?
A: Central dogma of Molecular Biology deals with the biomolecules such as DNA, RNA and proteins. It was…
Q: Write a short notes on harshey-chase experiment?
A: Hershey chase chase experiment were the series of experiments which was conducted in 1952 by Alfred…
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: What is the Kirby-Bauer Test? Describe it and explain how you would interpret the results.
A: By culturing bacteria on a plate and placing the soaked discs on the bacteria, this method measures…
Q: Describe how Beadle and Tatum’s experiments connected certain genes to enzymes and proteins.
A: A gene is a unit of hereditary present in thousands of numbers on the helical strands of…
Q: In one experiment, Griffith injected heat killed S strain bacteria into the mice. A. Whar was he…
A: Frederick Griffith was a British bacteriologist.Griffith`s experiment reported in 1928 by him,was…
Q: What is the control group in his experiment
A: Controlled variables are not part of the experiment but play an important role as they could affect…
Q: Why are bacteria a good living candidate in genetic engineering
A: Genetic engineering is the field of science that involves the deliberate modification of the…
Q: What evidence do you have to support "one gene-one protein" and what evidence do you have to refute…
A: EVIDENCE for one gene one polypeptide concept.
Q: State the questions that these classic experiments addressed: Griffith’s transformation experiment,…
A: DNA or deoxyribonucleic acid carries hereditary information from one generation to another. After…
Q: Using the question in the image below, identify the locations of each mutation in strains 1, 2, and…
A: Genes are short segments of DNA. They are responsible for our attributes, which are things like hair…
Q: Describe Hershey-Chase experiment
A: The unequivocal proof that the DNA is the genetic material came from the experiments of Alfred…
Q: Describe the classic experiments of Steward, Gurdon, and Wilmut.
A: Cells are formed by the division in the existing cells.
Q: What is an open reading frame?
A: A gene is a DNA-based functional heredity unit that delivers instructions for the production of RNA…
Q: Describe the “blender experiments” of Hershey and Chase and what they revealed about DNA versus…
A: The blender experiment performed by Hershey and Chase proved that the deoxyribonucleic acid (DNA) is…
Q: What does in vitro mean in biology?
A: In vitro and In vivo are the methods used in scientific studies for the purpose of the research. The…
Q: Did Watson and Crick ethical in the scientific work? And why
A: Ethics are a set of moral principles and values a civilized society follows. Doing science with…
Q: State what is the miller-urey experiment, when was it done and describe how it works.
A: Introduction Experiment stimulated the conditions thought at the time to be present on the early…
Q: What happened to cause Watson and Crick to be eliminated or banned from the research race at Kings?
A: The race to uncover the structure of DNA reveals fascinating insights into how Franklin’s data was…
Q: What are the 3 R's in animal experiments? Explain each.
A: The 3Rs principles were established more than 50 years ago to provide a foundation for conducting…
Q: why should animal testing be banned?
A: Animals are tortured, abused, and exploited in research and biomedical institutions throughout the…
Q: What is the benefit of doing a modified Furter-Meyer Test? What is the premise of this experiment?…
A: Lipids are naturally occurring molecules. Eg. Fats and waxes Vitamin E is also called as alpha-…
Q: What are the Chargaff rules? Describe the relationship between Chargaff and Watson and Crick.
A: DNA is a double helical structure that is made up of sugar (deoxyribose sugar), phosphate and base…
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 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 is difference between in vivo and in vitro?
A: The organism is defined as the any individual entity that embodies the properties of life. It is…
Q: How did the work of each of the following scientists—Garrod, Beadle and Tatum, and Pauling—…
A: Gene can be described as the unit of heredity that comprises the information related to the…
Q: What is your opinion on Synthetic Life Forms/creation of artificial organisms?
A: Synthetic biology is a branch of science that tries to rationally build living organisms, most…
Q: Why are model organisms so useful in genetics research? Choose one model organism and explain an…
A: Model organism is a non human species that is extensively studied by various experiments to…
Q: Explain Griffith's transformation experiments. What did he conclude from them?
A: Biomolecules are the chemicals present in living cells.
Q: What is the function of a control in an experiment?
A: Scientific control is a trial or perception intended to limit the impacts of factors other than the…
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: Give the Summary of the Hershey–Chase experiment ?
A: Alfred Hershey is an American bacteriologist and geneticist. Martha Chase is an American…
What is your understanding of the Meselson & Stahl Experiment?
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- What is Kozak sequence ? who invented this ?What functional assays did Kazutoshi Takahasi and Shinya Yamanaka use to show that induced pluripotent stem (iPS) cells function similarly to embryonic stem (ES) cells? Name 2.In sequencing, dideoxyribonucleotides (ddNTP) are used that terminate the amplification. Why do they terminate the amplification?
- Briefly explain the frameshift mutation ?All of the following are true about the design of the Beadle and Tatum experiment (one gene one polypeptide) EXCEPT: A. Used X-rays to generate auxotrophs B. Depended on the use of the bacteria, N. crassa C. Examined the way in which amino acid biosynthesis occurs D. Added nutrient intermediates to rescue lethal mutations included the study of conditional mutants E. Led to the one-gene-one polypeptide hypothesis.You are trying to produce a mammalian protein in the bacterium Escherichia coli. To make sure you achieve the goal, what should be taken into consideration when you design the experiment?
- Cap, EA1, and Sap are all genes/proteins of interest in this study. For each gene, what gene product is encoded and where is the gene (the literal DNA sequence) located physically in the cell? I need help fimiding this in the artticle and answer as short as possible https://www.ncbi.nlm.nih.gov/pmc/articles/PMC106848/What is the p-value or critical value of this problem?Let’s suppose you make a transposon library of the cellulose-secreting bacterium Komagataeibacter xylinus, with the goal of finding mutants that produce higher than normal amounts of cellulose, which would be useful industrially. However, despite your best efforts you are unable to isolate any transposon mutants that make more cellulose than the wild-type strain.Why might this have failed? List as many reasons as you can think of.