Promoters of housekeeping genes contain variable numbers of GC boxes, but neither TATA nor CCAAT boxes.Inwhat way these properties of housekeeping promoters are helpful?

2059

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Suppose you are heterozygous for a mutant beta-thalassemia allele. If the frequency of beta-thalassemia is 1/1600 persons, what is the probabilty that your prospective spouse is heterozygous for a mutant beta-thalassemia allele?

2015

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Cystic fibrosis (CF) occurs with a frequency of about 1/2500 Caucasian newborns and is inherited as an autosomal recessive. A woman had an older sister die from complications of this disease. CF is not present among relatives of her husband. Both the woman and her husband have normal phenotypes. What is the chance this couple will have a CF child?

2153

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A blastomere was removed from an 8-cell human embryo, and its beta-globin gene was amplified by PCR. The beta-globin DNA was treated with an enzyme that cuts on either side of and within the normal allele (producing a small fragment), but not within the sickle cell allele (producing a large fragment). Electrophoresis of the treated DNA from the blastomere demonstrated the presence of both a large and small fragment derived from the beta-globin genes. How should you interpret this test?

2036

---

concomitant administration of 6-mercaptopurine and which product results in severe bonemarrow suppression?

2566

---

Which factors affect diffusion of a gas through the blood- gas barrier of the lungs as based upon Fick's law?

2621

---

Calculate how much oxygen is dissolved in 100 milliliters of blood if the blood is exposed to a partial pressure of oxygen of 120 torr?

2107

---

What are the current challenges in the Pharmaceutical and biotechnology sectors?

2153

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A certain radioactive element A, has a half life = t seconds. In (t/2) seconds the fraction of the initial quantity of the element so far decayed is nearly how much?

2182

---

what is the image of point (3,8) in the line x + 3y = 7 ?

2188

---

How long will a train 100m long traveling at 72kmph take to overtake another train 200m long traveling at 54kmph?

3332

---

What is the product of the irrational roots of the equation (2x-1)(2x-3)(2x-5)(2x-7)=9?

2685

---

NLO : RPS : : ? : ZXA

2746

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what is Resolution?

1809

---

How are you qualified for the position of Assistant Clinical Director?

2431

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