A karyotype is. The number and visual appearance of the chromosomes in the cell nuclei of an organism or species.
Karyotype. It is the number and appearance of chromosomes in the nucleus of a cell. The term is also used for the complete set of chromosomes in a species or an individual organism.
Rhett. Found almost only in girls so XX karyotype.
Molecular genetic. Testing like Chromosomal Microarray reveals mutations of the MECP2 gene on Chromosome Xq28 in most cases of Rett Syndrome (RS). A genetic variant is caused by mutation of the FOXG1 gene on Chr. 14q13. The karyotype, or number & appearance of chromosomes is usually female (46 XX) in RS of X-linked Dominant inheritance. It's thought to be lethal in male fetuses (46 XY).
Normal. Karyotyping usually shows normal 46 XY or 46 XX karyotype. Needs to do specia probe to look for gene mutation for MECP-2 gene.
Let me see what is? Karyotype means chromosome abnormaility. It can occur in any type of leukemia, but it is uncommon in acute lymphocytic leukemia. Let your oncologist/hematologist decide whether or when to do it and explain to you what it means.
A karyotype is. .. A technique that lets us see the gross structural features of the chromosomes in a cell. Cells are forced to enter mitosis but then are arrested in metaphase with a drug called nocodazole. The chromosomes can the be seen under the microscop which lets is see their number and structure. All cells can have multiple abnormalities that can be seen by karyotype, but may be normal as well.
The karyotype... of a cell simply means the number and gross structural appearance of the chromosomes. For a normal cell, the karyotype is 46, XX (for females) or 46, XY (for males). Acute leukemias often have abnormal karyotypes as determined by a cytogenetic analysis (with a light microscope) or with FISH (using fluorescent DNA probes). Karyotype abnormalities may include more, fewer, or broken chromosomes.
Like everyone elses. It is a group of at least 8 genetic disorders. Allthough it's genetic: 1) 35% didn't have it in their families (spontaneous mutation?) 2) it is dominant... one good gene one bad gene 3) it is the GENE... sub microscopic change in a handful of atoms in DNA. NOT the chromosome.
Karyotype. This can best be explained by going to wikipedia for a details and pictures. It is looking at you chromosomes in blood or other cells.
Genetics. Rett syndrome is a severe neurodevelopmental disorder that arises from mutations in the x-linked mecp2 gene. It is almost exclusively seen in girls due to the predominant occurrence of the mutations on the paternal x-chromosome. For more info, consult with a geneticist.