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what is a membranemembrane is any delicate sheet that divides one region from another blocking or permitting selectively or completely the passage of
what are the main structures within the cell nucleuswithin the cell nucleus the major structures are the nucleolus an optically dense region
what are the three main parts of a eukaryotic cellthe eukaryotic cell can be divided into two major portions the cell membrane that divides the
concerning the presence of the nucleus what is the difference among animal and bacterial cellsanimal cells cells of living beings of the kingdom
which type of cell came first in evolution - the eukaryotic cell or the prokaryotic cellthis is an interesting problem of biological evolution the
normal 0 false false false en-in x-none x-none microsoftinternetexplorer4
what are the main respective constituents of cell walls in bacteria protists fungi and plantsin bacteria the cell wall is made of peptidoglycans
what is the difference between plasma membrane and cell wallplasma membrane and cell wall is not the similar thing plasma membrane also called cell
what is the plasma membrane of the cell what are its main functionsthe plasma membrane is the outer membrane of the cell it delimits the cell itself
what are the two big groups into which cells are classifiedcells can be divided as eukaryotic or prokaryoticprokaryotic cell is the cell that without
are there living beings without cellsviruses are measured the only living beings that do not have cells viruses are constitute by genetic material
what is cell theorycell theory declares that the cell is the constituent unit of living beingsbefore the discovery of the cell it was not identified
is there any situation in which dna is made based on a rna template what is the enzyme includedthe process in which dna is synthesized having as
concerning their biological function what is the difference between dna and rnadna is the source of information for rna production transcription and
what are the three main types of rna what is meant by heterogeneous rnamessenger rna or mrna transfer rna or trna and ribosomal rna or rrna are the
what are similarities and differences among the transcription process and the replication processesa dna polynucleotide chain serves as a template in
what is the production of rna called and what is the enzyme that catalyzes the processthe making of rna from information included in dna is called
does rna molecule have two polynucleotide chains like dnaonly dna has two polynucleotide chains rna is produced by just one polynucleotide
where can rna be found within cellsin the eukaryote cell nucleus rna can be found dispersed in the nuclear fluid with dna and as the main constituent
one characteristic of the dna molecule is its replication capability what are the consequences of failures during dna replicationideally a dna
as a result of dna replication two dna molecules come into existence why is it not correct to assert that two new dna molecules are created what is
why is it not correct to assert that dna self-replicates dna is not completely autonomous in its duplication process because the replication does not
what is the name of the dna duplication process what is the main enzyme that participates in it the process of copying or duplication of the dna
which type of chemical bond maintains the pairing of each chain in the dna moleculeto produce the dna molecule purine bases bind to pyrimidine bases
what is the rule for the pairing of nitrogen-containing bases in the dna molecule and in the rnathe rule for the pairing of nitrogen-containing bases