It represents the history of time which ends up being divided on the basis of the earth's biotic composition
Answer:
A) A transgene integrated into a heterochromatic region of the genome.
Explanation:
This is most likely the reason why the transgene is not expressed in the fifth cell line. It is likely that the transgene was integrated into a heterochromatic region of the genome. Heterochromatin consists of genetically inactive satellite sequences, and many of these are repressed to various extents. Moreover, because this is a tightly packed form of DNA or condensed DNA, it is inaccesible to polymerases and thus not transcribed.
Rachel Carson, one of the most world famous American Ecologist was among the first one who finds out about the Danger in Using Pesticides.
Not only that, she wrote several books about many environmental concerns that started people's general Awareness of Environmental problems, such as. The silent spring and The sea around us.
Explanation:
Antony van microscopist is best celebrated for locating bacterium and making over five hundred straightforward microscopes. He additionally discovered sperm cell cells, blood cells, protists and microscopic nematodes. He was created one amongst the primarily recorded observations of bacterium once he studied the plaque from his teeth and also the teeth of many others.
Ed Laurent could be an abstraction biologist United Nations agency develops and delivers cooperative, science-based recommendations and tools that modify the implementation and analysis of conservation activities.
Alexander Humboldt United Nations agency was 1st to explain ecological gradient of angular distance variety increase toward the tropics in 1807.
It is important because it creates a second copy of DNA that must go into one of the two daughter's cells when a cell divides
