tupynambai 2n = 23 [X.sub.1][X.sub.2]Y Relative size of Relative sex size of Species chromosomes
autosomes N.
Similar paralog ratio testing strategies have been used to detect autosomal trisomies and sex chromosome abnormalities by designing assays to target paralogs anchored on the relevant chromosomes with paired sequences on reference
autosomes (4, 5, 29, 30).
The karyotype consists of nine pairs of meta- or submetacentric and 17 pairs of acrocentric
autosomes. The largest
autosome is submetacentric and distinctly larger than the other chromosomes.
The phylogenetic pattern indicates two independent fusions of a cryptic Y chromosome with an
autosome, producing neo-Y chromosomes.
A whole genome (
autosome) study places the divergence of the Khoisan from the rest of the human race at 108,000 to 157,000 years ago.
In a few cases SRY gene is translocated to
autosome, father is unaffected and may carry translocation and XX siblings have a 50% chance of being affected, XY siblings are unaffected.
The X chromosome has higher proportion of cognitive genes as compared to
autosomes; but the presence of 22
autosomes and the origination of X chromosome from
autosome during the course of evolution is putting a mark of question on this fact and leads to the hypothesis that the number of autosomal cognitive genes should be higher in number than the genes on X chromosome.
The case reported here represents a much rarer example of an
autosome (non-sex chromosome) rearrangement interfering with normal sexual development.
She was a girl with Turner syndrome (45 XO) probably due to defective dystrophin gene present on the only X-chromosome; later in 1977 two more studies described girls with progressive muscular dystrophy and de novo translocations affecting the X - chromosome short arm.24 From then onwards many studies reported females with X -
autosome translocation.12,13,24 Addressing this issue that female patients can develop DMD and BMD, the mechanisms for a female to be a patient of DMD / BMD have been postulated by various workers.12,13,25,26
The size of the x chromosome is similar to the middle
autosome pair, none of them have a primary constriction, thus being holokinetic.
A palindrome on an
autosome will be selected against because it will lead to unequal recombination and chromosomal instability.
hordei was determined, as well as in other Cecidomyiidae species that have been examined cytologically (White 1973), by a sex chromosome to
autosome balance system with two X chromosomes.
A small percentage of these patients are SRY positive, meaning that they have cells to which the SRY gene was translocated to an X chromosome or
autosome during parental meiosis.
