Some articles on genetics, genetic material, genetic, material:
... A chiasma (plural chiasmata), in genetics, is thought to be the point where two homologous non-sister chromatids exchange genetic material during ... stage of prophase I of meiosis, but the actual "crossing-over" of genetic material is thought to occur during the previous pachytene stage ... of progeny) The phenomenon of genetic chiasmata (chiasmatypie) was discovered and described in 1909 by Frans Alfons Janssens, a Jesuit professor at the University of ...
... The variation in the genetic material shows that very few wild stallions contributed to the domestic horse, while many mares were part of early domesticated herds ... This is reflected in the difference in genetic variation between the DNA that is passed on along the paternal, or sire line (Y-chromosome) versus that passed on along the maternal, or dam line (mitochondrial DNA) ... are very low levels of Y-chromosome variability, but a great deal of genetic variation in mitochondrial DNA ...
... mainly through technology-based approaches such as gene mapping and germplasm (genetic material) storage ... However, although the storage of genetic material is a useful technique in the preservation of rare breeds, it cannot preserve the entire range of genetic diversity within even an individual breed, and stored material ... In the 1980s, the ALBC began a gene bank designed to preserve the genetic material of rare breeds ...
... duplication, which facilitates rapid evolution by providing substantial quantities of genetic material under weak or no selective constraints horizontal gene ... this theory offers a mechanism for a sudden evolutionary leap by incorporating the genetic material and biochemical composition of a separate species ...
... or zygote splitting into two or more embryos, each carrying the same genetic material (genes) ... Since identical multiples share the same genetic material, they are always the same sex ... grow into multiples no more genetically alike than ordinary full siblings, sharing 50% of their genetic material ...
Famous quotes containing the words material and/or genetic:
“The possibility of interpretation lies in the identity of the observer with the observed. Each material thing has its celestial side; has its translation, through humanity, into the spiritual and necessary sphere, where it plays a part as indestructible as any other.”
—Ralph Waldo Emerson (1803–1882)
“What strikes many twin researchers now is not how much identical twins are alike, but rather how different they are, given the same genetic makeup....Multiples don’t walk around in lockstep, talking in unison, thinking identical thoughts. The bond for normal twins, whether they are identical or fraternal, is based on how they, as individuals who are keenly aware of the differences between them, learn to relate to one another.”
—Pamela Patrick Novotny (20th century)