Chromosomal abnormalities can occur during any stage of fetal development or exposure of a fetus to teratogens. The chromosomal abnormalities can be in the form of a deficient or an excess number of chromosomes, an inadequate amount of DNA within chromosomes, and structurally deranged chromosomes. Down syndrome, Turner syndrome, and trisomy 18 are some conditions presenting with chromosomal abnormalities. There is no treatment for chromosomal abnormality.
Preimplantation Genetic diagnosis
Preimplantation genetic diagnosis helps couples to test their embryo for any genetic defect before implantation. It is a new technique to avoid IVF failure.
Chromosomal Breakage Syndrome - An Overview
Chromosomal breakage syndromes are a group of disorders that occur due to chromosomal instability. This article reviews a few chromosomal breakage disorders.
Trisomy 22 - Types, Symptoms, and Diagnosis
Trisomy 22 is a chromosomal disorder that occurs at birth. It affects the life expectancy of infants and can cause instant abortion.
Patau Syndrome - Types, Symptoms, Causes and Treatment
Patau syndrome is a severe chromosomal disorder due to the presence of an extra copy of chromosome 13. The article reviews Patau syndrome.
Nucleosome Positioning and Its Impact
Nucleosome obstructs underlying DNA sequences, and nucleosome location on the underlying DNA is crucial in controlling the activities. Read the article below.
Karyotyping - Advantages and Disadvantages
Karyotyping is a cytogenetic study method that deals with a chromosomal abnormality and the presence or absence of an extra chromosome. Read on to know more.
