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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
concerning the nitrogen-containing bases that participate in nucleotides what is the difference among dna and rnain dna nucleotides can be formed of
into which two groups can the nitrogen-containing bases that form dna and rna be classified what is the criterion used in that classificationthe
what are pentoses to what organic group do pentoses belong are nucleotides formed of only one type of pentosepentoses are carbohydrates made of five
what are zymogenszymogens or proenzymes are enzymes secreted in inactive form under some conditions a zymogen shifts to the active form of the enzyme
what are allosteric enzymesallosteric regulators can be allosteric inhibitors or allosteric activators the interaction among an allosteric enzyme and
what is the action mechanism of the antiretroviral drugs called protease inhibitors which are used against hiv infectionprotease inhibitors are some
what is the action mechanism of the antibiotic penicillinpenicillin discovered by the scottish doctor alexander fleming in 1928 is a drug that
what are enzyme cofactorssome enzymes require other associated molecules to work these molecules are known as enzyme cofactors and they can be for
do enzymes act better under acid or basic phmost enzymes act in ph among 6 and 8 a range that corresponds to the general acidic level of cells and
does ph affect the enzyme activitythe concentration of hydrogen ions in solution affects the enzyme activity every enzyme has maximal efficiency