Diamond Blackfan,

D Matthew Gianferante1,2, Kyra J W Mendez1, Sarah Cole1,2,3

  • 1Clinical Genetics Branch, Division of Cancer Epidemiology and Genetics National Cancer Institute, NIH, Rockville Bethesda Maryland USA.

EJHaem
|December 18, 2024
PubMed
概括

钻石黑贫血 (DBA) 是一种罕见的遗传疾病,影响红细胞的产生. 这项研究将特定的基因变异与临床特征联系起来,有助于更好地管理DBA患者.

相关概念视频

Multiple Allele Traits01:49

Multiple Allele Traits

The Concept of Multiple Allelism
34.0K
Genetic Lingo01:11

Genetic Lingo

Overview
100.9K
Background and Environment Affect Phenotype02:27

Background and Environment Affect Phenotype

Although the genetic makeup of an organism plays a major role in determining the phenotype, there are also several environmental factors, such as temperature, oxygen availability, presence of mutagens, that can alter an organism’s phenotype.
An example of how genetic background affects phenotype can be seen in horses. The Extension gene in horses is responsible for their coat color. A wild-type gene (EE) produces black pigment in the coat, while a mutant gene (ee) produces red pigment. A...
6.4K
Pedigree Analysis01:35

Pedigree Analysis

Overview
83.9K
Pleiotropy01:33

Pleiotropy

Pleiotropy is the phenomenon in which a single gene impacts multiple, seemingly unrelated phenotypic traits. For example, defects in the SOX10 gene cause Waardenburg Syndrome Type 4, or WS4, which can cause defects in pigmentation, hearing impairments, and an absence of intestinal contractions necessary for elimination. This diversity of phenotypes results from the expression pattern of SOX10 in early embryonic and fetal development. SOX10 is found in neural crest cells that form melanocytes,...
39.7K
Incomplete Dominance01:43

Incomplete Dominance

Gregor Mendel's work (1822 - 1884) was primarily focused on pea plants. Through his initial experiments, he determined that every gene in a diploid cell has two variants called alleles inherited from each parent. He suggested that amongst these two alleles, one allele is dominant in character and the other recessive. The combination of alleles determines the phenotype of a gene in an organism.
21.4K