The first fetal screening procedure that holly brook underwent revealed potential abnormalities in her baby. subsequently, she underwent another procedure in which a powerful magnetic field and radio images were used to generate detailed images of the baby's organs and structure. this prenatal diagnostic test, which showed more clearly that her baby has certain abnormalities in the central nervous system, is called

The test which clearly shows more clearly that the baby has certain abnormalities in the central nervous system is fetal MRI.

Fetal magnetic resonance imaging (MRI) is a non invasive, prenatal diagnostic technique that provides the anatomical details of the fetus. It supplements the information provided by the ultrasound screening. It uses powerful magnets and radio images rather than using radiations and gives detailed images of the fetal organs and its structure. It is done in the second or the third trimester of the pregnancy and provides details on any abnormality in the body, brain and spine of the fetus giving a clear picture of the nervous system of the fetus.

answer; i believe that the correct answer is ; males are hemizygous for the x chromosome;

answer///multiple alleles;