Plant nuclear genomes have a huge range in size, from some125 Mbof DNA in a range of species including crucifers, roses, some trees, pteridophytes, and bryophytes, up to more than 70000 Mb found in other pteridophytes and angiosperms (one lily has a genome of more than 120000 Mb)....
Do leaves have meristem cells? Do all trees have leaves? What is seed dispersal in plant biology? Does any photosynthesis occur in the mesopelagic zone? Do plants need to rest? Do liverworts have stomata? Do amoeba euglena paramecium volvox have chlorophyll?
2008. Past demogra- phy in forest trees: what can we learn from nuclear DNA sequences that we do not already know? Plant Ecol Divers. 1:209-215.Lascoux M, Pyhajarvi T, Kallman T, Savolainen O. 2008. Past demography in forest trees: what can we learn from nuclear DNA that we do ...
To orchestrate the cellular events which have tendency to increase the number of tasks per unit of time (frequency), which is proportional to the rate of growth (cell division rate) in all the cells within the individual organism, either of the growth rate or the body size of the organisms...
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If the cross-linking between DNA and protein is not repaired in time it is very harmful and deadly to the plant (Popracet al. 2017). ROS détoxifications are carried out when plant cells, enzymes and redox metabolites function synergistically to protect themselves from adverse effects. ...
During the recovery interval, the RNA polymerase is stalled to be activated by a pause-breaking factor in the subsequent drought. Drought leads to DNA demethylation near drought-response genes, with genetic control of the process. Progenies of the drought-exposed plants can better adapt to drought...
That puts these two amoebae on different forks of theearliest split in the lineage of complex cells. Their most recent common ancestor would likely have lived more than a billion years ago (andpossibly twice that). Even within the Arcellinida group–i.e. testate amoebae with thick, tubular...
known to use toolsto grab insects from inside trees, to communicate with gestures, and to remember people who've posed a threat. While crows haven't evolved the same brain structures that give humans and primates their intelligence, they do have dense clusters of brain cells that impa...
as coal fires in urban areas both killed off the lichens that grew on trees and blackened building walls, people began to notice that black peppered moths were more common than in the countryside. The environmental pressure on their coloration had flipped, and black was in vogue for any pepper...