Genetic Material

Some articles on genetic material, genetic, genetics:

Evidence Of Common Descent - Evidence From Comparative Physiology and Biochemistry - Genetics - Other Mechanisms
... rapid evolution by providing substantial quantities of genetic material under weak or no selective constraints horizontal gene transfer, the process of transferring genetic material to ... offers a mechanism for a sudden evolutionary leap by incorporating the genetic material and biochemical composition of a separate species ...
Multiple Births
... a single fertilized egg 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 ...
Horsie - Domestication
... Domestication is also studied by using the genetic material of present day horses and comparing it with the genetic material present in the bones and teeth of horse remains found in archaeological and ... 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 ...
Chiasma (genetics)
... A chiasma (plural chiasmata), in genetics, is thought to be the point where two homologous non-sister chromatids exchange genetic material during chromosomal crossover during meiosis (sister ... diplotene 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 Leuven in Belgium ...
American Livestock Breeds Conservancy - General Programs
... 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 ... In the 1980s, the ALBC began a gene bank designed to preserve the genetic material of rare breeds ...

Famous quotes containing the words material and/or genetic:

    So in accepting the leading of the sentiments, it is not what we believe concerning the immortality of the soul, or the like, but the universal impulse to believe, that is the material circumstance, and is the principal fact in this history of the globe.
    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)