Turner Syndrome
Turner Syndrome
Having only one sex chromosome is known as monosomy, specifically Turner syndrome in females who have only one X chromosome. This condition can lead to various physical and developmental abnormalities.
Female chromosomes typically have two X chromosomes (XX), while male chromosomes have one X and one Y chromosome (XY). This difference in the combination of sex chromosomes is used to determine the biological sex of an individual.
If you mean haploid, as in half of each chromosome, or containing only one chromatid from each full chromosome, thenthe cell is called haploid.
Individuals with only one X chromosome (Turner syndrome) typically develop female characteristics because the presence of the X chromosome is required for the development of many female traits. A single X chromosome carries genes that play a key role in the development of female reproductive structures and secondary sexual characteristics, leading to a predominantly female phenotype.
Men typically have one X chromosome and one Y chromosome. Women typically have two X chromosomes. So-called XX males have two X chromosomes; thus they are genetically female but otherwise appear to be male.
Genes in the X chromosome of males are always expressed because males have only one X chromosome, so there is no second copy to mask the expression of genes. This is different from females, who have two X chromosomes and undergo a process called X inactivation to balance gene expression between the X chromosomes.
The sex of a child is determined by the male's sperm carrying either an X or Y chromosome, which combines with the female's X chromosome. This belief stems from the understanding of biological processes of fertilization, where the sperm carrying a Y chromosome will result in a male child, while the sperm carrying an X chromosome will result in a female child.
Females have two X chromosomes, so if one carries a gene for a sex-linked disorder, the other X chromosome can often compensate for it. This means that females are less likely to express the disorder compared to males who have only one X chromosome.
A normal human male has one X chromosome and one Y chromosome.
In males, sperm contain only one sex chromosome. In females, eggs contain only one sex chromosome.