During DNA replication, the DNA polymerase synthesizes complementary DNA by mating on both strands, since the two strands are antiparallel, the replication is bidirectional, which means that one of the two strand is synthesized in a direction opposite to that of the direction of the enzyme, to do this, the DNA polymerase is obliged to synthesize DNA in the form of small fragments which are called Okazaki fragments, and its synthesized discontinuously (these fragments are not glued together by phosphodiester liasons, it is only after that another enzyme will intervene to ligate these fragments (DNA ligase).

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3 years ago

Certain cells have protein channels on them to transport substances across the cell membrane This kind of transport is referred

Dimas [21]

This is called active transport. The proteins use ATP to transport stuff in and out of the cell.

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3 years ago