What is the concentration of a DNA solution with an OD260 measurement of 3.175 if 1OD unit at 260nm represents a DNA concentration of 50 g/mL? Write the correct units.
Q: Which among the following statements is CORRECT? The thylakoid membrane, in the chlorophyll,…
A: Introduction Stroma is important as it consists of enzymes required for the fixation of carbon…
Q: 18. Which of the following has not been a major cause of the global population explosion that began…
A: Introduction POPULATION:- Population is the number of people in an area or a place. Therefore,…
Q: Question: Which macronutrient does fermentation consume to make the fermented food a)Protein…
A: Introduction Fermentation is the process which occurs in the absence of oxygen. It is a biochemical…
Q: You have cloned the gene for a human erythrocyte protein, which you suspect is a membrane protein.…
A: A hydropathy plot is a tool used to visualize the hydrophobicity or hydrophilicity of a protein…
Q: Hi! I am struggling and I need to do a Cladogram and one Morphology and DNA but separate! 9lease…
A: A cladogram is the diagrammatic representation of the different clades which shows the relationship…
Q: controllable division? A inability of chromosomes to align during the metaphase B с alteration of…
A: Please follow step 2 for detailed explanation.
Q: Describe the steps including the roll of ion terminals in a neuronal action potential
A: An action potential is created when the voltage difference between the inside and outside of a…
Q: This is an image of a lily flower. Based on your reading, please click the part of the flower where…
A: Sexually reproducing organisms produce male and female gametes. The fusion of male and female…
Q: Assume the DpnI digestion has failed after the PCR in the synthesis of mutated plasmid by thermal…
A: DNA that has been methylated or hemimethylated is unique to Dpn I. The majority of E. coli strains'…
Q: A 28-year-old woman has been sick with the flu for the past week, vomiting several times every day.…
A: Introduction : Normal blood pH level in humans ranges between 7.35 - 7.45 which is slightly basic.…
Q: 3. Oops, Amoeba Man (in the Garfield cartoon below) got it wrong! Describe why his eating process is…
A: A sort of cell or unicellular organism having the property to modify its shape, mainly by extending…
Q: please reflect on the three major subject areas 1. Evolution - including evolutionary processes,…
A: 1 evolution--Evolution is a change in the genetic composition of a population over successive…
Q: Many genes whose expression is turned on by DNA damage have been isolated. Loss-of-function…
A: The lexA gene codes for the repressor protein, which regulates the DNA repair, suppression of cell…
Q: A crucial step in the regulation of many bacterial genes is the binding of RNA polymerase to DNA at…
A: The synthesis of RNAs and proteins in accordance with the instructions contained in deoxyribonucleic…
Q: When the skin is exposed to sunlight it will produce: Calcium Vitamin D Vitamin C Vitamin D…
A: The skin acts as a shield by preventing the entry of pathogens into the body and protecting the body…
Q: Which processes of evolution apply to the development of the Neandertals? Genetic drift Natrural…
A: Neanderthals These are extinct species who lived in Eurasia about 40,000 years ago. These are…
Q: what is the importance of the wetlands in protecting new Orleans? How were they destroyed?
A: INTRODUCTION Wetland This is an ecosystem saturated by water. This is the area where the water…
Q: GLUT4 is a protein channel that facilitates the transport of glucose into the cell. Under nor- mal…
A: The beta cells in the pancreatic cells create the peptide hormone insulin. It serves as the body's…
Q: Mammal Dental formula Mammal Dental Formulas Specimen Bobcat Sheep Pig Fox Dental Formula 3. .2.1 3.…
A: a system of employing letters and numbers to represent the quantity and placement of teeth in both…
Q: Examine and describe the drop shapes which land on a plate and wax paper. Explain the difference in…
A: Water is an inorganic, transparent, tasteless, odourless, and colourless substance. It is the main…
Q: if the water potential of a dialysis is -4.0 and pressure potential was -2.0 and the solute is…
A: Introduction : The term "water potential" refers to the kinetic energy of water. When a solute is…
Q: How was the normal range of phenotypic variation within and between groups so different than it is…
A: The physical manifestation, or traits, of that attribute, is referred to as phenotype. It describes…
Q: Select an answer and submit. For keyboard navigation, use the up/down arrow keys to select an…
A: Gaucher disease is caused by an accumulation of specific fatty compounds in organs, mainly spleen…
Q: In tabular form, differentiate the differences in morphology of monocot and dicot fruits
A: The most varied class of plants are the angiosperms or blooming plants. This group includes the…
Q: 4. The process of impulse conduction along an efferent myelinated nerve involves transmission along…
A: Introduction Neurons transmit signals electrochemically, indicating that an electrical impulse is…
Q: Which of the following is NOT involved in oxygen production in photosynthesis? Photosystem I O Light…
A: Introduction : Autotrophic plants produce their own food through a process called photosynthesis.…
Q: Plant breeders have long appreciated the phenomenon called hybrid vigor or heterosis, in which…
A: Cytoplasmic male sterility (CMS) in corn is caused by defective mitochondrial genomes that impede…
Q: List the methods/techniques used to enhance drug solubility and briefly describe each.
A: Introduction Solubility, the phenomenon of dissolving a solute in a solvent to produce a…
Q: Please check all the proteins that would likely have a nuclear localization sequence: Histones TATA…
A: Nuclear localisation sequence in short 'NLS' is an amino acid sequence which tags a protein for…
Q: Which among the following statements is CORRECT? The thylakoid membrane, in the chlorophyll,…
A: In plants, Photosynthesis is the process of making food (glucose) and releasing oxygen by utilising…
Q: In most experiments using the lac operon, researchers use the synthetic inducer IPTG to turn on…
A: The lac operon system is the name given to the operon system that aids in bringing lactose into the…
Q: (Matching) Match the appropriate tool to the appropriate technological Mode. Ground stone tools…
A: There is little historical evidence for our predecessors' use of tools or their capacity to make…
Q: Do you think these different regional populations are different species that could only occasionally…
A: Introduction A population comprises all the organisms of a particular species in a particular…
Q: Place the following terms in the correct order 1-9 in the movement of actin filaments by myosin…
A: Muscle Contraction Is Triggered When an Action Potential runs along the Nerves to the Muscles.…
Q: Make or create one question about Speciation and ecology (Nature of species, reproductiva isolation,…
A: When a group within a species separates from other members of its species, it develops its own…
Q: Draw and label the different steps, including the DNA, RNA’s, the enzymes involved, in translation…
A: Introduction DNA is a self replicating molecule. mRNA is produced from DNA by a process called…
Q: The Upper Paleolithic / Later Stone Age includes____ that are characterized by____. a. Mode Ill…
A: Introduction: In later stone age is actually upper paleolithic the modern human moved…
Q: Fill in the Blanks Type your answers in all of the blanks and submit. X₂ Compare the life cycles of…
A: The plant kingdom is mainly divided into five divisions that are- algae, bryophyta, pteridophyta,…
Q: What happens during the regeneration stage of the Calvin Cycle? Energy from ATP and electrons from…
A: The stroma of chloroplasts in a plant cell undergo a sequence of processes known as the Calvin…
Q: Multiple choices: Question: Handedness (whether you are right or left-handed) shows a 79%…
A: Introduction Handedness in humans Handedness is defined as the better, faster, or more precise…
Q: Which statement(s) below regarding DNA mutations is true: A. Mutations only occur in genes B.…
A: Ans: D) Mutation can occur in promoters. Mutation is a change in the sequence of DNA due to…
Q: Slime molds are ususual in their lifestyles and apperance. You might have seen one and not even…
A: Molds are tiny fungi that consume plant or animal substances to survive. Nobody knows how many…
Q: Provide a diagram of the EPH RECEPTOR B2 (EPHB2) structure. Give bioinformatics structure
A: Ephrin-B2 is a powerful regulator of endothelial cell activity, implying that ephrins influence cell…
Q: Of what classs of DNA is Alu a member?
A: The arrangement of distinct sequence elements inside a gene is known as gene structure. The majority…
Q: How to produce CAR T cells effectively in bioreactor system while overcoming shear stress in…
A: Introduction:- Bioreactors are vessels or tanks in which whole cell- free enzymes transform raw…
Q: A mutant haploid strain of Saccharomyces cerevisiae (yeast) called cox2-1 was found that was unable…
A: S. cerevisiae is utilized as a prototype in biological sciences to examine conserved processes…
Q: Given that these respiratory pathogens have a diameter of 0.1 mm and have been associated with…
A: There are various microscopic organisms in nature. Few of them are bacteria, viruses, or fungi. They…
Q: 10) A a base and a sugar. A) nucleoside B) base pair C) nucleotide D) complementary base E)…
A: According to bartleby policy we have to answer only first three multiple choice question hence…
Q: Secondary contact only plays a role in some of the speciation modes. Name the mode(s) of speciation…
A: Species include organisms that can interbreed. This interbreeding between the members of the species…
Q: 2. Glycogenesis, reaction scheme and regulatory enzymes.
A: Glycogenesis is the mechanism by which simple sugars are joined to the glycogen chains for…
Step by step
Solved in 2 steps
- How many moles of EDTA (C10H16N2O3) do you have in 785µl of a 74MM EDTA solution (Mr(C10H16N203) = 292.24)? Consider all digits of your Givens significant. Round results to the appropriate number of Significant Digits. The number of moles is mmol.You have been given a stock solution of dye that has a 10X concentration. You wish to make 750ul of a 1X dilution of this dye. Give the volume of 10X dye that you will use (in ul)How many moles of KBr are there in 89.5 mL of 0.150 M KBr?
- A vial of Doxorubicin reads 0•5g per vial. Instructions say to reconstitute each 12mg with 2•5ml of NS. How many ml of NS will be needed to reconstitute the vial of the recommended concentration? please show workingThe diffusivity of amino acids in polyacrylamide gel is approximately 1x10^-9 cm2./s calculate the initial flux of amino acids, give an instantaneous gradient of (20g/cm 3 )/8cm Why is polyacrylamide gel is used in electrophoresis?A 25.0 mL aliquot was taken from a 500.0 mL sample of tonic water containing an unknown amount of quinine and diluted to a volume of 150.0 mL. At 347.5 nm, the fluorescence intensity of the diluted sample was measured as 89.3 on an arbitrary scale. Under similar conditions, a 25.0 ppm standard quinine solution had a fluorescence intensity of 173. Calculate the mass of quinine in the original tonic water sample. mass: mg * TOOLS x10
- After three minutes, the concentration of drug Zip in the red blood cells is 10 mmoles l-1. What is the average rate of entry of drug Zip into the red blood cells in units of moles min-1 red blood cell-1 during the first three minutes after placing the red blood cells into the bathing solution? Assume that each red blood cell occupies about 1 x 10-13 liters.What is the pH of a buffer solution that is 0.20 M proprionic acid (HC3H4O2) and 0.1 M sodium proprionate (NaC3H4O2)? The KA of proprionic acid is 1.3 x 10-5What does an A280 of 0.000 indicate? What does this reading indicate in the context of your column chromatography? Are there still proteins adhering to the column? Do you know anything about the proteins which are still adhering to the column?
- Specific rotation of L-alanine [(+)alanine) in water (at 25 °C) is +2.8. Suppose you have 2.00 g of mixture of L and D-alanine [(-)alanine]. You dissolved it in 10 mL of water, and measured rotation in 10 cm cell. The observed rotation was +0.12. Calculate the ee% for the mixture. How many grams of D- and L-alanine do you have in the sample?You perform a Bradford assay to determine the concentration of isolated α-lactalbumin. You use 50 μL of a two-fold diluted solution of α-lactalbumin in the assay. You generate a standard curve with the following equation for the line: y = 0.163x + 0.082. The absorbance of your sample was 0.674 AU. What is the concentration of α-lactalbumin, in mg/mL, in your sample? Give your answer to three significant figures.G418 disulfate (FW 692.7) is an antibiotic used to select transfected mammalian cells in tissue culture. The standard working concentration for selection is 400 µg/mL of active ingredient in culture medium. The bottle states that it contains 71% active ingredient. You need to make a 100x stock in medium and adjust the pH before you apply it to cells. How much powder should be added to make 10 mL of stock solution? How much do you add to a 2 mL culture dish?