Examlex
Which of the following statements is(are) false?
I.The hexagonal closest-packed structure is ABAB....
II.A body-centered cubic unit cell has four atoms per unit cell.
III.For unit cells having the same edge length, a simple cubic structure would have a smaller density than a body-centered cube.
IV.Atoms in a solid consisting of only one element would have six nearest neighbors if the crystal structure was a simple cubic array.
Chorionic Villus Sampling
A prenatal test where a small sample of the placental tissue (chorionic villi) is taken to test for chromosomal abnormalities and certain other genetic problems.
Fetal Cells
Cells that make up the developing fetus in the womb, which possess the ability to divide and specialize into various cell types.
Defective Conditions
Situations or items that are flawed, damaged, or not functioning as intended, often requiring repair or replacement.
Chorionic Villus Sampling
A prenatal test involving the sampling of chorionic villi to test for chromosomal abnormalities in the fetus.
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