How the positive and negative DNA markers are used in genetic engineering?

2265

---

Differentiate between biotechnology and bioengineering?

2439

---

What are the 8 steps that are involved in genetic engineering?

3927

---

What evidence can you cite that suggests that rheumatic fever is an autoimmune disease?

1989

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What is meant by positive strand RNA and negative strand RNA?

2145

---

What are the two ways that animal viruses may penetrate their host cell?

2941

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Describe the infectious cycle of a negative strand RNA virus?

2144

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This microscopic life form is transparent and has an elongated body that is pointed at the rear. The mouth is at the base of the neck, which can be extended like the trunk of an elephant. What is this ciliophora called?

2207

---

You suspect microscopic grains on a slide that you exposed to the outside air to be pollen. To test this, you place a drop of a sugar solution on the slide with the grains. If this is pollen, what will happen?

2053

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The blooms of these protists gives water a watermelon-like taste. What is this microlife called?

2311

---

What are the enzymes produced by streptococci?

2120

---

What is the procedure for Laboratory diagnosis of enteric fever?

2328

---

The nucleophile in the first stage of the serine protease mechanism is a) H2O b) the carboxyl of Asp 102 c) the hydroxyl of Ser 195 d) the imidazole of His 57

2132

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The elution volume of an enzyme on a gel filtration column can be predicted from a) its enzyme activity b) its protein absorbance at 280 nm c) subunit composition and monomer molecular mass(es) d) Choices a) and b) are both correct.

3258

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DNA binding by proteins with the helix-turn-helix (HTH) motif does not involve a) altered stacking of the DNA at the center of symmetry. b) hydrogen bonds, salt bridges, and van der Waals contacts. c) interactions with base pairs in the major groove of DNA. d) interactions with the sugar-phosphate backbone of DNA.

2120

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