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Q1) Northern blotting, RT-PCR, and RNA-sequencing can be used to analyze gene expression. A lab studies yeast cells, comparing their growth in two different sugars, glucose and galactose. First student is comparing expression of the gene HMG2 under these two conditions. Which technique(s) could he use and why? Student 2 wants to compare expression of all the genes on chromosome 4, of which there are 800. What technique(s) could she use and why?
Q2) What types of genes are transcribed by RNA polymerases I, II and III.
Q3) What general transcription factors associate with an RNA polymerase II promotor in addition to the polymerase? In what order do they bind in vitro? What structural change occur in the DNA when an "open" transcription initiation complex is formed?
Describe the process of protein digestion in the stomach and in the small intestine. Include the roles of hydrochloric acid, pepsin, proteases, and peptidase in your answer.
question a describe the composition of soil including both the living and nonliving components. in your description
If a woman that is heterozygous for this trait marries a man without it what is the probability that:
How do you think a toxin might get into your body? Can you think of any way that consuming something, fasting, or applying something to your body (oil, for example) could remove toxins?
What is the function of the iodine solution in the Gram stain? If it were omitted, how would staining results be affected
If the ATP synthase molecules were randomly orientated so that about half faced the outside of the vesicle and half faced the inside, would you expect ATP to be synthesized.
A cell of a particular species has 3, 6, or 12 pg of DNA at different stages. How much DNA does each of the following cells have? Please be certain to include units.
1 food remains in the stomach for several hours. passage of food through the small intestines also requires several
If purple (P) is dominant to white (p) and axial (A) is dominant to terminal (a), and in a cross of white, axial to purple, axial the ratio of offspring is 3/8 white, axial; 1/8 white, terminal; 3/8 purple, axial; 1/8 purple, terminal, then what i..
During exercise, epinephrine and norepinephrine are released from the adrenal medulla. Epinephrine and norepinephrine have the same effect on plasma glucose levels as glucagon. Explain how epinephrine and norepinephrine affect plasma glucose and w..
Which of the following pairs is most closely related?
q1. imagine there are 25 different species of protists living in a tide pool. some of the species reproduce both
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