AdEnInE
cytosine
Complementary nucleotides
During DNA replication, the enzyme DNA polymerase catalyses the formation of new strands of DNA, using the old strands as models. DNA has a double-helix structure, with two strands forming each helix. Each strand is made up of DNA nucleotides, with the genetic information encoded in the sequence of different nucleotides (different nucleotides are distinguished by molecules called 'bases' attached to them, so the sequence of nucleotides is known as the 'base sequence'). The base sequence of one strand is complementary to that of its' neighbour - the base A binds with T, and C with G, so if one strand had the sequence ATTACA, the base sequence of the complementary strand would be TAATGT. When DNA polymerase creates a new DNA strand, it does so by matching nucleotides to the base sequence of one of the strands - the template strand. New nucleotides are brought in, which match the template in a complementary fashion (ie. A-T, C-G), and join to become one new strand. This new strand is complementary to the template.
RNA polymerase
A basepair is a pair of nucleotides on opposite complementary DNA or RNA strands which are connected via hydrogen bonds.
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complementary nucleotides
complementary nucleotides
Complementary
this is bull
Yes, strands of DNA are complementary. Complementary implies that a sequence of nucleotides (ex. ATATG) is ordered in a way that it directly corresponds to another sequence of nucleotides (ex. TATAC). Since DNA is double stranded in most circumstances, barring mutagenesis, one strand would be pair with its complementary strand, thus forming the double stand.
The two strands of parental DNA separate, and each becomes a template for the assembly of a complementary strand from a supply of Why_does_one_DNA_strand_grow_one_nucleotide_at_a_time_and_the_other_is_assembled_in_short_fragmentsnucleotides. The nucleotides line up one at a time along the template strand in accordance with base pairing rules. Enzymes link the nucleotides to form the new DNA strands.Read more: Why_does_one_DNA_strand_grow_one_nucleotide_at_a_time_and_the_other_is_assembled_in_short_fragments