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Practice Listening: Select Missing Word ID: #39939 Short Ultrasound
Instructions ›
You will see a video detailing how chorionic villus biopsy is used for early genetic diagnosis during pregnancy. At the end of the recording the last word or group of words has been replaced by a beep. Select the correct option to complete the recording.

Transcript:

Ultrasound is used in prenatal screening and diagnosis. This pregnant woman is a carrier for the genetic illness cystic fibrosis. Her foetus can be diagnosed as early as 12 weeks by using a technique known as chorionic villus biopsy. Foetal cells are removed from the placenta. The DNA from these cells is amplified. And used to produce a (genetic fingerprint).
* Click on the correct answer

Result:

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Option 3: "genetic fingerprint"

Explanation: This option is correct as it directly corresponds to the phrase used in the text. The text states that DNA from foetal cells is used to produce a genetic fingerprint, which is a specific term in genetics that identifies unique DNA patterns. This aligns perfectly with the context of prenatal screening and diagnosis.

Option 1: "complete blood count"

Explanation: This option refers to a common blood test that measures various components of blood, but it does not relate to the context of genetic diagnosis mentioned in the text. The text specifically discusses the use of DNA from foetal cells to create a genetic fingerprint, making this option irrelevant.

Option 2: "estimate"

Explanation: While 'estimate' could imply a form of approximation, it does not fit the context of the sentence, which requires a specific term related to genetic analysis. The text emphasizes the production of a genetic fingerprint, thus making this option incorrect.

Option 4: "medical history"

Explanation: This option refers to a record of a patient's past health issues and treatments, which is not relevant to the context of genetic testing discussed in the text. The focus is on genetic analysis through DNA, making this option incorrect.

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