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
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
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 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
- Most of the X-lined genes in humans are expressed in equal amounts between males and females because A: only one of the two X chromosomes is active in each cell in the females. B: X-linked genes on the X chromosome in males are expressed two-fold higher than in females. C: only one X chromosome is kept after fertilization. D: Half of the RNA transcripts from X chromosomes in female cells are degraded after transcription.
- 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
- Which of the following inherited disease only inherited from mother? <br/>() A: Single-gene disorder B: Polygenic disorder C: Chromosome disorder D: Mitochondrial disease