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Haploid in Biological News

USC researchers identify alternate pathway that leads to palate development

... the cell's control center, and prompt DNA expression in order to spur changes in the cell. "For instance, we've learned that when someone has a haploid insufficiency and is missing one copy of the TGF- gene, he or she is more vulnerable to environmental insults that can cause cleft palate, such as ...

Moss is a super model for feeding the hungry

... By sequencing the genome, we can start to identify their genetic basis and use the knowledge for crop improvement. Physcomitrella has a single haploid genome rather than a double genome from male and female parents which makes it easier to identify which characteristics link to which gene. The ...

A genetic identity card for Plasmodium populations to improve control strategies

... humans. However, that kind of genetic analysis results in several points of bias. With samples collected from humans, scientists can work only on the haploid phase of the parasite cycle during which only one example of each chromosome is present. Therefore they cannot measure the rate of association and ...

First individual genome sequence published

... of DNA from various people. In the case of Celera, it was a consensus assembly from five individuals, while the government-funded version was a haploid genome based on sequencing from a limited number of individuals. Both versions greatly underestimated human genetic diversity. This new genome, ...

Scientists discover role for dueling RNAs

... can be catastrophic. If a cell with only one copy of each chromosome (a haploid cell) is forced into meiosis, the progeny won't survive. Fortunately, such destructive meiotic division is avoided in haploid cells because they continually produce IME4 antisense RNA, blocking the ...

What controls stickiness of 'smart' chromosomal glue

... the centromere. Only in a second stage of meiosis that gives rise to haploid sperm or egg cells do centromeric cohesins become cleaved. This precisely ... stage of meiosis -- dividing without chromosome replication to produce haploid sperm or egg cells. Recombination is essential for cohesins to get ...

Mitochondrial genes move to the nucleus -- but it's not for the sex

... Why mitochondrial genes ditch their cushy haploid environs to take up residence in a large and chaotic nucleus has long stumped evolutionary biologists, but Indiana University Bloomington scientists ...

Researchers now able to look deep into heart to view triggers of a heart's beat

... males of these insects develop from unfertilized eggs, they have half the number of chromosomes that females have--in technical terms, the males are haploid and the females are diploid. This situation, known as haplodiploidy, results in interesting genetic relationships that are thought to underlie ...

Insects that produce males from unfertilized eggs reveal a surprising cellular feat

... males of these insects develop from unfertilized eggs, they have half the number of chromosomes that females have--in technical terms, the males are haploid and the females are diploid. This situation, known as haplodiploidy, results in interesting genetic relationships that are thought to underlie ...
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