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何谓常染色体显性遗传病?临床上如何确认?常染色体显性遗传病是指决定该病的基因位于第1～22号常染色体上,这个致病基因对正常的等位基因来说是显性,这类疾病称为常染色体显性遗传病。在遗传学上,显性基因用A 表示,其等位的隐性基因则用a 表示。由于体细胞中的基因都是成对地存在,所以决定一个个体的一个性状之基因型可能为AA、aa 或Aa。基因型为AA 或aa 的个体,由于这对等
What is autosomal dominant disease? How clinically confirmed? Autosomal dominant disease refers to the gene that determines the disease is located in the autosomal No. 1 to No. 22, the pathogenic gene for the normal allele is significant Sexually, these diseases are called autosomal dominant genetic disease. Genetically, the dominant gene is represented by A, and its allelic recessive gene is represented by a. Because the genes in somatic cells exist in pairs, the genotype of a trait that determines an individual may be AA, aa, or Aa. Individuals with genotype AA or aa due to this equivalence