A: Patients with chromosome number and structural abnormalities
B: History of chromosomally abnormal child or pregnancy
C: Advanced maternal age
D: HLA matching, pepole with cancer susceptibility genes
举一反三
- Indications for PGT include（） A: Patients with chromosome number and structural abnormalities B: History of chromosomally abnormal child or pregnancy C: Advanced maternal age D: HLA matching, pepole with cancer susceptibility genes
- Indications of PGT include ( ) A: Patients with abnormal chromosome number or structure B: Patients with a history of chromosomal abnormalities in their offspring C: Advanced aged patients D: Patients with cancer susceptibility genes
- Principal indications for prenatal diagnosis by invasive testing: A: Previous child with a de novo chromosome abnormality B: Presence of structural chromosome abnormality in one of the parents C: Family history of an X-linked disorder D: Risk of a neural tube defect
- Common high-risk factors for a pregnant woman include ( ). A: maternal health B: age of the pregnant woman C: adverse pregnancy history D: height of the pregnant woman
- Family history， age， genetic abnormalities， and diet， these are all called constitutional risk factor.。（ ）
内容
- 0
Which is correct about the red-green colorblind in humans? A: loss of L or M cone genes on the X chromosome B: gain of S cone genes on the X chromosome C: loss of L or M cone genes on the Y chromosome D: gain of S cone genes on the Y chromosome
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Family history, age, genetic abnormalities, and diet, these are all called constitutional risk factor. A: 正确 B: 错误
- 2
According to the passage, the risk of a child developing insulin-dependent diabetes is linked to all the following factors EXCEPT A: the maternal age at delivery. B: the age of the father. C: birth order. D: the amount of sugar he or she consumes.
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Which of the following genes are structural genes? (). A: The promoter B: The enhancer C: The silencing D: The guide protein synthesis
- 4
Which of the following are the most common and clinically useful risk factors for the breast cancer? A: Fibrocystic disease, age and gender B: Cysts, family history in immediate relatives and gender C: Age, gender and family history in immediate relatives D: Obesity, Nulliparity and alcohol use