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Below is a segment of bacterial Lac Operon sequence. An E. coli transcript with the first 5 nucleotides 5' AUGU3'. Carefully examine the sequence and then answer the questions.Strand A: 5'GCTTTACACTTTATGCTTCCGGCTCGTATGTTGTGTGGAATTGTGAGCGGATAAGTTAATCACACAGGAAACAGCTATGACCATGATT 3'Strand B: 3'CGAAATGTGAAATACGAAGGCCGAGCATACAACACACCTTAACACTCGCCTATTCAATTAGTGTGTCCTTTGTCGATACTGGTACTAA 5'A. Where is the trascription start site?B. find TTTACA around -35 region and box it. (my answer is highlighted in yellow above)C. find TATGTT around -10 region and box it. (my answer highlighted pink above)D. lable template and coding strands (my answer: template is strand B and coding is strand A)E. does transcription elongation proceed towards the right or left? (my answer: right)F. write the sequence of the primary RNA transcript starting at 5' aUUGU3'. include polarity of the transcript.
Suppose that the equilibrium potential for sodium ion across a skeletal muscle is +66 mv at a temperature of 37 degree celcius when the external concentration is 145 mM
Discuss how can growth characteristics on a streak plate, broth culture or slant culture be used in the identification of a bacterial species or strain?
What drugs are commonly used to anesthetize a patient undergoing abdominal surgery and why? Critically discuss the most common anticonvulsants or tranquilizers used to treat epileptic patients (drugs to prevent seizures)?
The genome of virus SV40 is a circular double-stranded DNA molecule 5 kb long. A 1 kb region is amplified by PCR for four cycles. What fraction of total DNA does the target sequence constitute.
Most cellular activities involve converting energy form one form to another. For each of the following cases, give a biological example and explain the significance of the conversion.
Wild type e. coli can synthesize all 20 common amino acids, but some mutants, called amino acid auxotrophs, are unable to synthesize a specific amino acid and require its addition to the culture medium for optimal growth.
What promotes exponential growth? What constrains population development.
The DNA molecule is permitted to replicate in a solution containing all four unlabeled deoxyribonucleoside tripohosphates and deoxyadenosine triphospage that is labeled with 32P.
What is the possibility that this child will have red-green color blindness? Figure the cross.
A recent report hypothesized that the IQ of children that are first-born differs from those that are born later. They found that first-born children have higher IQ’s than later born children, but you do not believe this is correct.
On a field trip, a student in a marine biology class collects an organism that has differentiated organs, cell walls of cellulose, and chloroplasts with chlorophyll a.
The doctor writes an order for 125 mg of a medication. The label on the vial states "50 mg per ml". How many ml should the nurse administer?
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