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2- Choose the best micropipette from the following to withdraw 110µl more accurately? 0.5-10 µl                          10-100...

2- Choose the best micropipette from the following to withdraw 110µl more accurately?

0.5-10 µl                          10-100 µl

20-200 µl                         100-1000 µl

3- When you want to pull liquid using a micropipette, you must hold it vertically and pull from the surface of the liquid. (True/ False)

4- Mention one way for AIDS transmission.

5- Positive result in ELISA is detected when the wells color change from colorless into colored . (True/False).

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Answer #1

Correct answers

2. 10- 100

3. True

4. A. Using Needle frok infected person

b. Blood transfusion from infected person

c. Unprotected sexual intercourse with infected person

5. False

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