相关实验视频
Updated: Jul 27, 2026
08:39
Shifting Zebrafish Lethal Skeletal Mutant Penetrance by Progeny Testing
Published on: September 1, 2017
血友病. 这是一种血友病. 基因突变和血统的基因突变和血统
1Division of Medical and Molecular Genetics, GKTSchool of Medicine, 8th Floor, Guy's Hospital Tower, London Bridge, SE1 9RT, London, UK. Adrienne.Knight@kcl.ac.uk
Lancet (London, England)
|January 11, 2002
概括
No abstract available in PubMed .
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相关概念视频
01:11Genetic Lingo
Overview
01:35Pedigree Analysis
Overview
01:19X-linked Traits
In most mammalian species, females have two X sex chromosomes and males have an X and Y. As a result, mutations on the X chromosome in females may be masked by the presence of a normal allele on the second X. In contrast, a mutation on the X chromosome in males more often causes observable biological defects, as there is no normal X to compensate. Trait variations arising from mutations on the X chromosome are called “X-linked”.
01:43Sex-linked Disorders
Like autosomes, sex chromosomes contain a variety of genes necessary for normal body function. When a mutation in one of these genes results in biological deficits, the disorder is considered sex-linked.
01:35Pedigree Analysis
Overview
01:19X-linked Traits
In most mammalian species, females have two X sex chromosomes and males have an X and Y. As a result, mutations on the X chromosome in females may be masked by the presence of a normal allele on the second X. In contrast, a mutation on the X chromosome in males more often causes observable biological defects, as there is no normal X to compensate. Trait variations arising from mutations on the X chromosome are called “X-linked”.