You are using genetic engineering to design a protein that needs to be synthesized in the cytoplasm and then localized in the nucleus of the cell. To accomplish this, one could add You are using genetic engineering to design a protein that needs to be synthesized in the cytoplasm and then localized in the nucleus of the cell. To accomplish this, one could add a nuclear localization signal into the DNA that will be present in the mature protein. the compound during mitosis, at a time when the nuclear membrane is dispersed. a nucleotide or few nucleotides to the protein. a series of specific polysaccharides to the carboxyterminal end of the protein. all of the above

Nuclear Localization Signal

Explanation:

If a protein that is assembled in the cytoplasm has to function or be localized to the nucleus, the type of additions to the carboxyterminal end or accessories for mitosis will serve no purpose if the protein cannot get in. For this reason, proteins that are made to be moved inside the nucleus must have a protein signal to enter.

The nucleus is the "brain" of the cell and it must control what leaves and enters. A protein signal allows the protein to enter inside the nuclear pore. Since the nucleus is restrictive on the components that are allowed to enter or not, this signal is critical.

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the nitrogen cycle provides nitrogen to the ecosystem from the atmosphere, ground and oceans. nitrogen is an important component of complex molecules such as amino acids and nucleotides, which lead to the creation of proteins and dna, the building blocks of all life. plants absorb nitrogen in the form of ammonium, nitrate ion and, on rare occasions, as amino acids. animals receive nitrogen necessary for biological processes from feeding on living or dead organic matter.