QUESTION 16
A pregnant mother's blood contains small fragments of DNA from the fetus.
True
False
QUESTION 17
Which of the following genetic tests is based restriction enzyme sites?
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MaterniT21 Plus |
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Amniocentesis |
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PCR |
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RFLP |
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ASOs |
QUESTION 18
What term refers to genetic analysis of single cells from IVF embryos?
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FISH |
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PGD |
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RFPL |
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PCR |
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SARS |
Please find the answers below:
QUESTION 16: A pregnant mother's blood contains small fragments of DNA from the fetus.
Answer: True
Explanation: Yes, it is true that the mother's blood contains the DNA fragments (which is about 10%) that enter the mother's blood from the dying placental cells, fetus or the fetal cells. These are called cell-free fetal DNA (cffDNA).
QUESTION 17: Which of the following genetic tests is based on restriction enzyme sites?
Answer: RFLP
Explanation: RFLP is a Restriction Fragment Length Polymorphism. It is a simple technique in which comparison of the multiple DNA samples is performed. In this techniques, only a few portions of the genetic code present ina DNA molecule has to be compared between different DNA samples.
QUESTION 18: What term refers to genetic analysis of single cells from IVF embryos?
Answer: PGD
Explanation: PGD is Pre-implantation Genetic Diagnosis. This is a tenchnique that is used to check the embryos or the oocytes prior to the implantation in IVF to screen for genetic disease.
QUESTION 16 A pregnant mother's blood contains small fragments of DNA from the fetus. True False...
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