One of the most commonly used terms in criminal investigations is the so-called "DNA". DNA, or deoxyribonucleic acid. It is the fundamental building block for an individual's entire genetic makeup. DNA consists of two long polymers of simple units called nucleotides, with backbones made of sugars and phosphate groups joined by ester bonds. These two strands run in opposite directions to each other and are therefore anti-parallel. Áttached to each sugar is one of four types of molecules called bases. It is the sequence of these four bases along the backbone that encodes information. This information is read using the genetic code, which specifies the sequence of the amino acids within proteins. The code is read by copying stretches of DNA into the related nucleic acid RNA, in a process caled transcription. Nucleobases (or nucleotide bases/nitrogenous bases) are the parts of DNA and RNA that may be involved in pairing). The primary nucleobasęs are cytosine (C), guanine (G), adenine (A), and thymine (T), and uracil (U).They are usually simply called bases in genetics. Because A, G, C, and T appear in the DNA, these molecules are called DNA-bases; A, G, C, and U are called RNA-bases. For this example, let us consider the DNA bases, A, G. C, and T. Suppose one of these four bases must be selected three times to form a linear triplet, how many different triplets are possible3 Note that all four bases can be selected for each of the three components of the plet

Question 20 Culture media must be: A agar sterile c) selective D chemically complete

QUESTION 11 In this gel image, click on the band that represents the molecule that is smallest in size (mass). Coloctod Coordioator

could the answer be no cooperativity as well?

Question 7: A. Calculate how to make 10 ml of a 7.5% methylene blue stock solution (from solid powder). B. Calculate how to make a series of 1:10 dilutions of this stock. Imagine you'll use 5 ml of each dilution for your experiment. Calculate the final concentrations of each tube. tube 1: take some stock, dilute it 1:10 with some water in a new tube - #1 tube 2: take some of #1, dilute it 1:10 with some water in a new tube tube 3: take some of #2, dilute it 1:10 with some water in a new tube tube 4: take some of #3, dilute it 1:10 with some water in a new tube C. First, decide the total volume to make of each tube-keep in mind measurement accuracy (consider preparing 20% more solution than what you will use). D. Then, calculate how much stock, water and final concentration of each. E. Then, instead of doing a serial dilution, calculate making each of the above solutions using the weight/volume % solution method. F. Compare and contrast serial dilution and W/V % methods

QUESTION 64 When transferring 0.8 mL of a chemical from íts source to a test tube, which of the following equipment would be most appropriate? O 10.0 mL beaker O 1.0 mL pipette 0.1 ml pipette 10.0 mL pipette 25.0 mL beaker QUESTION 65 True or False: The acknowledgements section of a scientific paper recognizes those who have played an active role in designing the experiment, carrying it out and/or analyzing data. O True O False

Question 1 We have received a specialized blood sera that contains antibodies. We want to test whether the antibody will bind to a target on our cell culture. The company that harvested the material has reported that the harvest works best at a 1:250 dilution. What volume of blood sera should we add to make a total volume of 1ml of antibody containing culture media? You may give your answer in any unit you like, but remember to include the unit. Edit Format Table 12pt v Paragraph v