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Of special concern is the secretion of alpha-fetoprotein (AFP); under some circumstances, AFP can be used as a diagnostic marker specific for the presence of yolk sac cells within the teratoma. These cells can develop into a frankly malignant tumor known as yolk sac tumor or endodermal sinus tumor .
Abnormally elevated AFP in the serum of a pregnant woman can have one or more of these sources: [citation needed] a problem with the fetus; a problem with the placenta; a tumor or liver disease in the woman; a normally elevated AFP in the fetus or woman (some people naturally have very high AFP)
Tetrasomy X, also known as 48,XXXX, is a chromosomal disorder in which a female has four, rather than two, copies of the X chromosome.It is associated with intellectual disability of varying severity, characteristic "coarse" facial features, heart defects, and skeletal anomalies such as increased height, clinodactyly (incurved pinky fingers), and radioulnar synostosis (fusion of the long bones ...
The four pigments in a bird's cone cells (in this example, estrildid finches) extend the range of color vision into the ultraviolet. [1]Tetrachromacy (from Greek tetra, meaning "four" and chroma, meaning "color") is the condition of possessing four independent channels for conveying color information, or possessing four types of cone cell in the eye.
Christian Vierig / Getty Images. While I’m still seeing plenty of English women sprinkle in burgundy accents, there’s one other color on the rise in London right now: blue.The other day, I was ...
The latest issue of Hello! magazine describes Melania Trump as someone who has "grown in confidence" and now has "newfound authority" during her second stint in the White House as first lady.
The most common abnormality the test can screen is trisomy 21 (Down syndrome).In addition to Down syndrome, the triple and quadruple screens assess risk for fetal trisomy 18 also known as Edwards syndrome, open neural tube defects, and may also detect an increased risk of Turner syndrome, triploidy, trisomy 16 mosaicism, fetal death, Smith–Lemli–Opitz syndrome, and steroid sulfatase ...
In response to President Donald Trump's executive order banning diversity, equity and inclusion initiatives, the Pentagon's intelligence agency has paused special event programs and related events ...