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The double-helix structure of DNA.
A change in genotype and phenotype due to external DNA assimilation.
By tracking which labeled component entered E. coli during phage infection.
Adenine equals thymine and guanine equals cytosine in DNA.
It suggests the mechanism of DNA replication.
Each daughter DNA molecule contains one old and one new strand.
They untwist the double helix and separate DNA strands.
To synthesize new DNA strands by adding nucleotides.
The strand synthesized continuously towards the replication fork.
Short segments of DNA synthesized on the lagging strand.
Ligase joins Okazaki fragments while polymerase I replaces RNA primers with DNA.
To correct mismatched nucleotides during synthesis.
They shorten with each cell division.
To lengthen telomeres in germ cells.
They introduce variation that natural selection can act upon.
Prokaryotes have circular DNA; eukaryotes have linear DNA with proteins.