In context of amniocentesis, which of the following statement is incorrect?? (1) it is usually done when a woman is bw 14-16 weeks pregnant (2) it is used for prenatal sex determination (3) it can be used for detection of Down syndrome (4) it can be used for detection of cleft palate?

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Answer

Answer

Amniocentesis includes extraction of amniotic fluid by insertion of the needle through the abdomen into the uterus and amniotic sac during 14 - 16 week old pregnancy.
Amniotic fluid contains amniotic membrane cells and foetus skin cells which are then cultured to detect any chromosomal anomaly in the foetus by analysing chromosomal aberration/defects and also for disclosing the sex of the foetus. Down syndrome is an autosomal disorder (genetic disorder ), caused by an extra copy of chromosome number 21 and therefore, can be detected by amniocentesis. Cleft palate is caused by both genetic and environmental factors and can't always be detected using amniocentesis.

So, option 4 is incorrect statement...

$$Hope it's help... $$

Answer

Option 4 is incorrect.. amino centesis can't help in detection of cleft palate..

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1 statement

Answer

Incorrect Statement: (4) It can be used for detection of cleft palate.

Explanation:
Amniocentesis is a prenatal diagnostic procedure that involves the removal of a small amount of amniotic fluid from the amniotic sac surrounding the developing fetus. This fluid contains fetal cells and various substances that can provide valuable information about the health and development of the fetus.

1. Timing of Amniocentesis:
Amniocentesis is usually performed between the 14th and 16th weeks of pregnancy. This timing ensures that there is enough amniotic fluid and fetal cells for accurate testing. Performing the procedure earlier may result in insufficient fluid or cells for analysis.

2. Prenatal Sex Determination:
Amniocentesis can be used for prenatal sex determination. The fetal cells obtained during the procedure can be analyzed for the presence of specific sex chromosomes (XX for female and XY for male). This information can be helpful for families who may have a genetic disorder linked to a specific sex chromosome or for personal reasons.

3. Detection of Down Syndrome:
Amniocentesis is commonly used for the detection of chromosomal abnormalities, such as Down syndrome. The fetal cells obtained during the procedure can be analyzed for the presence of an extra copy of chromosome 21, which is characteristic of Down syndrome. This test can provide accurate results and help expectant parents make informed decisions about the future care of their child.

4. Cleft Palate Detection:
The statement that amniocentesis can be used for the detection of cleft palate is incorrect. Cleft palate is a structural abnormality that affects the roof of the mouth. It is not related to chromosomal abnormalities, and therefore, cannot be detected through amniocentesis. Cleft palate is usually diagnosed through ultrasound examinations during pregnancy or after birth through physical examination.

In conclusion, amniocentesis is a valuable prenatal diagnostic procedure that can be used for various purposes, including detecting chromosomal abnormalities like Down syndrome and determining fetal sex. However, it cannot be used for the detection of cleft palate, as this condition is not related to chromosomal abnormalities.

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