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  • genes
  • Cytokinins help to maintain the plant cell and expression of cytokinin biosynthesis genes late in development prevents leaf senescence. (wikipedia.org)
  • As in mitochondria, which have a genome encoding 37 genes, plastids have their own genomes of about 100-120 unique genes and, it is presumed, arose as prokaryotic endosymbionts living in the cells of an early eukaryotic ancestor of the land plants and algae. (wikipedia.org)
  • Geneticists, including plant geneticists, use this sequencing of DNA to their advantage as they splice and delete certain genes and regions of the DNA molecule to produce a different or desired genotype and thus, also producing a different phenotype. (wikipedia.org)
  • dicots
  • I'm not a plant expert, but I can tell monocots from dicots . (physicsforums.com)
  • Transformation via Agrobacterium has been successfully practiced in dicots, i.e. broadleaf plants, such as soybeans and tomatoes, for many years. (wikipedia.org)
  • Secondly
  • Secondly, being annual may allow the plants a better survival strategy, since the plant can put most of its accumulated energy and resources into seed production rather than saving some for the plant to overwinter, which would limit seed production. (wikipedia.org)
  • cannabis
  • So we thought we'd take a look at the common questions raised about the evidence and research into cannabis, cannabinoids (the active chemicals found in the plant and elsewhere) and cancer, and address some of the wider issues that crop up in this debate. (cancerresearchuk.org)
  • Humans have been using cannabis plants for medicinal and recreational purposes for thousands of years, but cannabinoids themselves were first purified from cannabis plants in the 1940s. (cancerresearchuk.org)
  • The structure of the main active ingredient of cannabis plants - delta-9 tetrahydrocannabinol (THC) - was discovered in the 60s. (cancerresearchuk.org)
  • Psychoactive plants have been used ritually ( e.g. , peyote as an entheogen ), medicinally ( e.g. , opium as an analgesic ), and therapeutically ( e.g. , cannabis as a drug ) for thousands of years. (wikipedia.org)
  • mechanical
  • HVAC plant usually includes air conditioning (both heating and cooling systems and ventilation ) and other mechanical systems. (wikipedia.org)
  • The new funding paid for the construction of additional workshops and the transition of the plant from mechanical drive with its great shafts and belts to electric drive. (wikipedia.org)
  • Myosins and other mechanochemical enzymes which use chemical energy in the form of ATP to produce mechanical vibrations in cells may also contribute to sound wave generation in plant cells. (wikipedia.org)
  • resemble
  • The plants first appeared in the Ordovician , but did not begin to resemble modern plants until the Late Silurian. (berkeley.edu)
  • Most conspicuous among the algae are the seaweeds, multicellular algae that may roughly resemble land plants, but are classified among the brown, red and green algae. (wikipedia.org)
  • amounts
  • Botanists are not completely sure why thermogenic plants generate large amounts of excess heat, but most agree that it has something to do with increasing pollination rates. (wikipedia.org)
  • axes
  • A stem is one of two main structural axes of a vascular plant , the other being the root . (wikipedia.org)
  • Pollen
  • While the insect is getting heat, it will also be pollinating the plant by spreading pollen that is stuck to its body. (wikipedia.org)
  • The only way the plant could get fertilized is from receiving pollen from different plants. (wikipedia.org)