The present report summarizes molecular studies on the parent and meiotic stage of origin of the additional chromosome in 432 fetuses or liveborns with an additional chromosome 13, 14, 15, 21, or 22. Our studies suggest that there is little variation in the origin of nondisjunction among the five acrocentric trisomies and that there is no association between the origin of nondisjunction and the likelihood of survival to term of the trisomic conceptus. The proportion of cases of paternal origin was similar among the five trisomies: 12% for trisomy 13, 17% for trisomy 14, 12% for trisomy 15, 9% for trisomy 21, and 11% for trisomy 22. The stage of nondisjunction was also similar among the five trisomies, with the majority of cases of maternal origin being due to nondisjunction at meiosis I, whereas for paternally derived cases, nondisjunction occurred primarily at meiosis II.
This research output has an Altmetric Attention Score of 29. This is our high-level measure of the quality and quantity of online attention that it has received. This Attention Score, as well as the ranking and number of research outputs shown below, was calculated when the research output was last mentioned on 21 February 2022.
All research outputs
#1,690,146
of 33,087,078 outputs
Outputs from Human Genetics
#110
of 3,615 outputs
Outputs of similar age
#420
of 29,884 outputs
Outputs of similar age from Human Genetics
#1
of 26 outputs
Altmetric has tracked 33,087,078 research outputs across all sources so far. Compared to these this one has done particularly well and is in the 94th percentile: it's in the top 10% of all research outputs ever tracked by Altmetric.
So far Altmetric has tracked 3,615 research outputs from this source. They typically receive a little more attention than average, with a mean Attention Score of 7.2. This one has done particularly well, scoring higher than 96% of its peers.
Older research outputs will score higher simply because they've had more time to accumulate mentions. To account for age we can compare this Altmetric Attention Score to the 29,884 tracked outputs that were published within six weeks on either side of this one in any source. This one has done particularly well, scoring higher than 98% of its contemporaries.
We're also able to compare this research output to 26 others from the same source and published within six weeks on either side of this one. This one has done particularly well, scoring higher than 96% of its contemporaries.
