更多helix例句

1. One of the last century’s most dramatic discoveries came in 1953, when James Watson and Francis Crick, aided by an X-ray image produced by Rosalind Franklin, figured out the double helix structure of the genetic molecule DNA.
2. Scouring the human genome today, it’s clear we have viral DNA and other genetic elements embedded inside our own double helices.
3. Based on enormously complicated biophysics—much of which remains mysterious—the string folds into delicate shapes, such as sheets of twisting and turning strands, or helices that wrap around each other.
4. These drugs interfere with the double helix zip-unzip-zip-again process of RNA and DNA replication.
5. This process, known as epigenetics, involves the addition of small chemical tags known as methyl groups to the DNA double helix.
6. Maazel writes about a soon-to-be Helix hostage, Anne-Janet, who was on “cancer furlough.”
7. The largest is Helix pomatia (figured on pp. 11 and 12), which often goes by the name of “the edible snail.”
8. In 1878 he removed to Umatilla county, Oregon, where he took up a homestead and a timber culture near Helix.
9. He went carelessly too near the still revolving machinery, and his coat-flap was caught and wound into the helix of the pugmill.
10. There are to be found in this bed of marl several species of helix and voluta.
11. If the latter is in the form of a helix its magnetic field resembles that of a straight bar magnet.