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Listening Quiz: Chiết Xuất Axit Nucleic Cho Xét Nghiệm Tải Lượng Vi-rút HIV – Easy Level
Th3 7, 2024
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bởi
Anna Phạm
trong
Tiếng Anh Y Tế
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1.
What is the conversation mainly about?
Reviewing a patient’s lab results
Planning an HIV treatment schedule
Cleaning laboratory equipment after use
Performing nucleic acid extraction for an HIV viral load assay
Explanation:
Laura and Daniel discuss the step-by-step process of nucleic acid extraction for an HIV viral load assay.
2.
What does Laura add first to the sample?
Elution buffer
Lysis buffer
Ethanol
Wash buffer
Explanation:
Laura says, “First, I add the lysis buffer to the sample.”
3.
How long did Laura mix the sample after adding ethanol?
For two minutes
For one minute
Until it turned clear
Until centrifuging was finished
Explanation:
Laura states that she “mixed it gently for one minute.”
4.
What does Laura do after centrifuging the spin column?
She loads the sample onto the column
She washes the column with wash buffer twice
She documents the work order
She adds lysis buffer again
Explanation:
After centrifuging the column, Laura says she washes it with wash buffer twice.
5.
How are the nucleic acids finally collected?
By loading the sample onto the spin column
By washing the column twice
By adding elution buffer and centrifuging
By adding ethanol and mixing gently
Explanation:
Laura explains that she adds elution buffer and then centrifuges to collect the nucleic acids.
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