Explain why these two DNA samples give different results, when they're both 50% G-C. Fraction of DNA 1 0.9 0.8 0.7 0.6 0.5 0.4 0.3 0.2 0.1 0 ---E coli DNA - Potoroo DNA
Q: Describe the general requirements of biological buffers for an effective experiment.
A: Buffer is the solution that is made up of weak acid and its conjugated base or a weak base and its…
Q: The hormone, which is a small peptide, that induces labor in pregnant women is A.oxytocin…
A:
Q: 3.-Substances are removed from the cell-due-to-the- connection of the membrane structure of the…
A: INTRODUCTION Endocytosis is the process of capturing a substance or particle from outside the cell…
Q: Type of chlorophyll only found in eukaryotes. a.Chl b b.Chl a c.Chl d d.Chl c
A: Introduction: The green color of the plant is due to this chemical called chlorophyll which is used…
Q: Elaborate Please complete the table. Table 1. The Compounds and Elements in the Human Body Compounds…
A: Carbohydrates, proteins, fats and vitamins are essential nutrients that are important for proper…
Q: What are the two stages in Photosynthesis called and where in the chloroplast does each stage take…
A: Photosynthesis is the process by which plants use sunlight, water, and carbon dioxide to make oxygen…
Q: In the chain elongation of proteins, the new aminoacyl-tRNA bonds to? a.A site b.E site c.G site…
A: Translation is process by which the cells produce protein from the information provided by the DNA.…
Q: Suppose you determine that the interaction of two proteins catalyzes a reaction producing a toxic…
A: The proteins would be having binding groups and binding sites complimentary to each other. The…
Q: From the data, what can you conlucde about the effect of this mutant?
A: The difference between tyrosine and phenylalanine is that tyrosine has an hydroxyl group. The liver…
Q: Which of the following statements correctly describes promoters in E. coli a.A promoter may be…
A: A promoter is a short region of DNA upstream of the start site of a gene at which the RNA Polymerase…
Q: 1. Draw the structures of the 20 biologically active AA. Under each structure, write the name,…
A: Amino acids are compound containing C, H, O and N. They act as building blocks ( monomer) of…
Q: Which of the following statements is/are TRUE for the promoters? The Pribnow box and TATA box are…
A: A promoter is a short region of DNA upstream of gene where RNA Polymerase recognizes the start site…
Q: A 8 month old girl is taken into the emergency room a few days after receiving her first round of…
A: To defend the body against allergies, viruses, and bacteria, the immune system produces antibodies.…
Q: 21) Chemical energy in sugars is converted into energy the cell can use in the A) mitochondria. B)…
A: Metabolism is the set of reactions that are essential to sustain life. Anabolic and catabolic…
Q: 5. Specific properties of amino acids in the organism: a) deamination; b) transamination; c)…
A: Amino acids are the building blocks of proteins, its alpha carbon contains carboxyl group, amine…
Q: Type of DNA spontaneous mutation that can explain why uracil is not found in DNA a.depurination…
A: DNA is composed of adenine, thymine, cytosine and guanine.Uracil is not found in the structure of…
Q: Which of the following statement(s) is/are FALSE for hemoglobin? A Demonstrates positive…
A: Hemoglobin is a protein that transports oxygen from lungs to the tissues and CO2 from tissues to the…
Q: What is the difference between cellobiose & cellulose? A. Cellulose is a starch molecule,…
A: Carbohydrates are linked together via glycosidic bond in order to produce different types of…
Q: Following the production of membrane extracts using the non-ionic detergent Triton X-100, you…
A: The methods for cell disruption are host-dependent, and the techniques for recovering membrane…
Q: Which of the following statements is/are FALSE about glycolysis? A. It is an anaerobic process.…
A: Glycolysis is the catabolic pathway and is the first step in cellular respiration. This metabolic…
Q: Which of the following is the correct sequence in the ETC? A. NADH → CoQ → cytochrome c → Fe-S →…
A: During cellular respiration, respiratory substrates like glucose may undergo complete or…
Q: describe each dosage form and enumerate and describe each kind. EMULSIONS-3 KINDS SOLUTIONS-3 KINDS
A: An emulsion is colloid made up of mixture of 2 or more liquids that are sparingly soluble in each of…
Q: How could nucleic acids have appeared without the enzymes that catalyze their synthesis?
A: Apart from the biological synthesis of the nucleic acids using a set of enzymes, the nucleic acid…
Q: 3. A mutation that changes an alanine residue in the interior of a protein to a valine is found to…
A: Proteins are composed of twenty standard amino acids that differ from each other in their side-chain…
Q: Using a flow diagram, elaborate on how you would generate a recombinant plasmid.
A: Plasmid is a circular double stranded DNA molecule found in bacteria and is capable of self…
Q: Which of the following processes is/are used to fix atmospheric N2? a.bacterial action b.Haber…
A: Nitrogen fixation is the process in which nitrogen in its molecular form (N2) in the atmosphere is…
Q: b) You walk into university and see that everyone has become a unicorn. You try to hide in bluezone…
A: Kinases are enzymes which are responsible for phosphorylating the target protein or molecule. This…
Q: Which of the following statements regarding catabolism and anabolism is incorrect? a) All metabolic…
A: The totality of all biochemical processes that occur within a living thing is called metabolism. The…
Q: Although high cholesterol level is associated with cardiovascular disease, cholesterol plays an…
A: Cholesterol is an essential fat that is present in our body and is important for the synthesis of…
Q: Which statement best describes the definition of the term amphoteric? 1.Amino acids are soluble in…
A: Amino acids are organic molecules that act as the component units of proteins. Acids are proton…
Q: Find an example of an enzyme. Answer the following questions about the enzyme that you chose. a)…
A: Enzymes are proteins produced by living organisms to catalyze specific metabolic and biochemical…
Q: Which of the following is/are true about the Cellular Membrane Structure: A. All membranes from…
A: The cell membrane, also known as the plasma membrane or cytoplasmic membrane, is a biological…
Q: 4. Draw in all the lone pairs on each structure. Briefly compare the size/shape of each molecule.…
A: In a covalent bond, where there is sharing of electrons and not a transfer of electrons, the pair of…
Q: Literature on the type of inhibition exerted by AZT on the HIV reverse transcriptase enzyme.
A: Reverse transcription is an essential step in retroviral replication. The the viral RNA genome of…
Q: Which of the following is a true representation of the experimental design and results? Choose one:…
A: Low pH means a higher concentration of H+ ions. The experiment was conducted to determine whether…
Q: The phenol concentration of wastewater was determined from three (3) parallel determinations, giving…
A: As per the given experimental data; Mean of phenol concentration of wastewater: 0.513 μg L-1…
Q: Below are several problems frequently faced by researchers when running the PCR. Give one (1)…
A: The polymerase chain reaction or PCR is a method widely used in molecular biology. This method is…
Q: Which of the following fatty acids will produce propionyl-CoA in its/their last β-oxidation cycle?
A: Fatty acids metabolism involves β-oxidation which happens in the mitochondrial matrix. In…
Q: Which of the following are nitrogenous bases with the general structure shown in the picture?…
A: The nitrogenous base shown in the picture contains a bi cyclic ring which indicates that it is a…
Q: 7. What is the definition of a glycoside?
A: The naturally occurring sugars from plants can be found associated with some other groups . These…
Q: Do you think rules and guidelines on laboratory safety and chemical handling are designed to hinder…
A: Laboratory handling and chemical handling is important for saving our life. Laboratory handling…
Q: 9. A patient with liver failure underwent a study of the electrophoretic spectrum of serum proteins.…
A: Proteins are the complex molecules that are made up of Aminoacids. They have definite charge that is…
Q: Question 17 of 17 Match the concepts with their corresponding definitions or descriptions Match each…
A: Carbohydrates are the polyhydroxy aldehydes or ketones, or the compounds yield on hydrolysis.…
Q: The transcription initiation factor “recruited” together with RNA-Pol II in the formation of…
A: Transcription is a process of making an RNA copy from a gene’s DNA sequence. This is known as…
Q: The amino acid histidine has ionizable groups with p?a values of 1.8, 6.0, and 9.2, as shown. A…
A: Amino acids are the building blocks of proteins which are composed of amino group (NH3+), carboxyl…
Q: write out summary on pyruvate kinase
A: A kinase is an enzyme that catalyzes the transfer of phosphate groups from one compound to other.…
Q: Give some options choose the structure of coenzyme that is not derived from a vitamin and provide…
A: Coenzymes are the type of cofactors required for the functioning of the enzymes. These are complex…
Q: wirte out summary on phosphofructokinase (PFK)
A: Glycolysis is the metabolic pathway that describes the conversion of 1 six-carbon atom glucose to 2…
Q: Draw the structures of L-Cysteine from highly protonated to depronated form. Note Structure A as the…
A: The proteins are constituted of 20 naturally occurring amino acids. The amino acids cysteine has a…
can you help with the question in the picture please
Trending now
This is a popular solution!
Step by step
Solved in 2 steps
- True or False, if the statement is false, provide the correct answer. 1. The amino acid sequence is not responsible for specifying the 3D shape of a protein. 2. The red, orange, and yellow pigments found in plants, that are often visible in the fall are chlorophyll. 3. There are 10 base pairs in one full turn of the DNA double helix. 4. The stroma is a gel-like material within the chloroplast that corresponds to the cytoplasm of the original bacterium. 5. Plants gather the sun's energy with light-absorbing molecules called pigments.A 918,980 Å long double stranded DNA molecule is the B-conformation. If the DNA has has alternating GC Sequence and adopts the Z-conformation. How long is it now?1 2 3 4 (kbp) (bp) 4. To the right is an image of an agarose gel. Lanes 1 and 4 are DNA markers (DNA sizes are known) and serve as a reference to estimate the size of DNA fragment of interest in Lane 2 and 3. 4.36 2.32 a. What is the approximate size of the fragment in lane 2? Pay attention to units! 500 -200 b. What is the approximate size of the fragment in lane 3 (near the bottom)? Pay attention to units!
- HersheyChase Experiments The graph shown in FIGURE 8.5 is reproduced from an original 1952 publication by Hershey and Chase. Bacteriophage were labeled with radioactive tracers and allowed 10 infect bacteria. The virusbacteria mixtures were then whirled in a blender to dislodge any viral components attached to the exterior of the bacteria. Afterward, radioactivity from the tracers was measured. FIGURE 8.5 Detail of Alfred Hershey and Martha Chases 1952 publication describing their experiments with bacteriophage. Infected bacteria refers to the percentage of bacteria that survived the blender. After 4 minutes in the blender, what percentage of each isotope was extracellular?HersheyChase Experiments The graph shown in FIGURE 8.5 is reproduced from an original 1952 publication by Hershey and Chase. Bacteriophage were labeled with radioactive tracers and allowed 10 infect bacteria. The virusbacteria mixtures were then whirled in a blender to dislodge any viral components attached to the exterior of the bacteria. Afterward, radioactivity from the tracers was measured. FIGURE 8.5 Detail of Alfred Hershey and Martha Chases 1952 publication describing their experiments with bacteriophage. Infected bacteria refers to the percentage of bacteria that survived the blender. How did the researchers know that the radioisotopes in the fluid came from outside of the bacterial cells and not from bacteria that had been broken apart by whirling in the blender?HersheyChase Experiments The graph shown in FIGURE 8.5 is reproduced from an original 1952 publication by Hershey and Chase. Bacteriophage were labeled with radioactive tracers and allowed 10 infect bacteria. The virusbacteria mixtures were then whirled in a blender to dislodge any viral components attached to the exterior of the bacteria. Afterward, radioactivity from the tracers was measured. FIGURE 8.5 Detail of Alfred Hershey and Martha Chases 1952 publication describing their experiments with bacteriophage. Infected bacteria refers to the percentage of bacteria that survived the blender. The extracellular concentration of which isotope increased the most with blending?
- HersheyChase Experiments The graph shown in FIGURE 8.5 is reproduced from an original 1952 publication by Hershey and Chase. Bacteriophage were labeled with radioactive tracers and allowed 10 infect bacteria. The virusbacteria mixtures were then whirled in a blender to dislodge any viral components attached to the exterior of the bacteria. Afterward, radioactivity from the tracers was measured. FIGURE 8.5 Detail of Alfred Hershey and Martha Chases 1952 publication describing their experiments with bacteriophage. Infected bacteria refers to the percentage of bacteria that survived the blender. Before blending what percentage of each isotope. 35S and 32P, was extracellular (outside the bacteria)?HersheyChase Experiments The graph shown in FIGURE 8.5 is reproduced from an original 1952 publication by Hershey and Chase. Bacteriophage were labeled with radioactive tracers and allowed 10 infect bacteria. The virusbacteria mixtures were then whirled in a blender to dislodge any viral components attached to the exterior of the bacteria. Afterward, radioactivity from the tracers was measured. FIGURE 8.5 Detail of Alfred Hershey and Martha Chases 1952 publication describing their experiments with bacteriophage. Infected bacteria refers to the percentage of bacteria that survived the blender. Do these results imply that viruses inject DNA or protein into bacteria? Why or why not?Demuestra lo que sabes del vo X ure.com/courses/57129/quizzes/206819/take Question I8 1 pts 3.7- Chargaff's Rule & The Hayflick Limit In 1950, Erwin Chargaff analyzed the base pair composition of DNA. He discovered that... % Adenine = % Thymine % Cytosine = % Guanine Meaning... There are equal amounts of Adenine and Thymine and equal amounts of Cytosine and Guanine in any given DNA sample. Question: Which of these statements is TRUE if there is 40% Guanine in a strand of DNA? There is 20% Adenine O There is 15% Thymine O There is 10% Cytocine O There is 10% Adenine
- researcher runs an agarose gel IIl ladder one läñé ând 100 ng of a 500 bp DNA fragment in another lane. The gel is 0.5% agarose, and it is run for 45 minutes time at 200 V. When he checked the gel, he saw three bands in the Hind III lane and no other bands on the gel. What can be the reason behind this. What additional information we may need to be sure about the reason.In E. coli, Base excision repair (BER) handles non-bulky lesions (e.g., deamination, oxidation) and nucleotide excision repair (NER) handles bulky lesions (e.g., Py dimers). Is this statement true or false? O True FalseO Off target effects are not really a concern. Question 20 What happens after a double stranded break is induced in the DNA? Select the statement that is FALSE. O HR which will lead to a small indel if template DNA is absent O Microhomology-Mediated End Joining O Non-Homologous End Joining O HR if template DNA is present Question 21 See below for four STR profiles from four different boys, as depicted in an electropherogram. The peak local
