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Chromosome abnormalities can either be numerical or structural and usually occur when there is an error in cell division.
… Chromosome abnormalities can be numerical or structural. A numerical … instead of a pair. A structural abnormality means the chromosome's structure has been altered in one of several … is called a karyotype. The karyotype can help identify abnormalities in the structure or the number of chromosomes. …
News Release
Extending noninvasive prenatal screening to all 24 human chromosomes can detect genetic disorders that explain miscarriage and abnormalities during pregnancy.
… detect genetic disorders that may explain miscarriage and abnormalities during pregnancy, according to a study by … condition in which there are three instances of a certain chromosome instead of the standard two. "Extending our … cohort. For each, researchers calculated a normalized chromosome denominator quality (NCDQ), which measures the …
Educational Resources
The Y chromosome is one of the two sex chromosomes that are involved in sex determination.
… Y Chromosome … The Y chromosome is one of the two sex chromosomes that are involved in sex determination. … Chromosome, Mutation, Sex Chromosome, Sex Linked, X Chromosome, Y Chromosome, …
Educational Resources
The X chromosome is one of the two sex chromosomes that are involved in sex determination.
… X Chromosome … The X chromosome is one of the two sex chromosomes that are involved in sex determination. … Cell, Chromosome, Sex Linked, Y Chromosome, Gene, Mutation, Genome, Base Pair … The X …
Educational Resources
A sex chromosome is a type of chromosome that participates in sex determination.
… Sex Chromosome … A sex chromosome is a type of chromosome that participates in sex determination. … X Chromosome, Y Chromosome, Cell … A sex chromosome is a type …
Fact Sheets
Among the 24 chromosomes that make up the human genome, the Y chromosome is unique for its highly repetitive structure. Scientists are studying the Y and its unusual features to better understand human health and disease.
… the 24 chromosomes that make up the human genome, the Y chromosome is unique for its highly repetitive structure. … human health and disease.   11 Neat Facts About the Y chromosome In the nucleus of each cell, DNA packaged in … In fertilization, sperm can contribute either an X or a Y chromosome, while eggs always contribute an X chromosome.  …
Infographic
The X chromosome determines your sex, gives some females super color vision and lends its magic to a certain breed of cat.
… The X chromosome determines your sex, gives some females super … to a certain breed of cat.   … 10 Neat Facts About the X Chromosome In the nucleus of each cell, DNA packaged in … while those who are biologically male have one X and one Y chromosome ( XY ). However, there are exceptions to this …
Fact Sheets
Chromosomes are thread-like structures located inside the nucleus of animal and plant cells.
… located inside the nucleus of animal and plant cells. Each chromosome is made of protein and a single molecule of … that make each type of living creature unique. The term chromosome comes from the Greek words for color (chroma) and … example, people with Down syndrome have three copies of chromosome 21, instead of the two copies found in other …
Educational Resources
Translocation is a type of chromosomal abnormality in which a chromosome breaks and a portion of it reattaches to a different chromosome.
… is a type of chromosomal abnormality in which a chromosome breaks and a portion of it reattaches to a different chromosome. … Chromosome, Karyotype, Mutation, Spectral Karyotype (SKY) … A …
About Genomics
Resources for understanding the first truly complete sequence of the Y chromosome, the final human chromosome to be fully sequenced.
… The Y chromosome is one of two human sex chromosomes, the other being the X chromosome. When researchers completed the first human genome … 20 years ago, gaps were left in the sequences of every chromosome, and in the race to sequence the human genome, the …