Which of the following separates the DNA strands during replication? A) Helicase
B) DNA polymerase III
C) Ligase
D) DNA polymerase I
E) Primase

How many trophic levels are there in the following food chain? phytoplankton - shrimp - perch - pike - osprey

Which of the following explains why a tree is often used as a model to represent the principle of common descent

Abody cell has been growing and at synthesis proteins.in the nucleus of this body cell,dna replication is taking place. and a copy of the cells genetic material is copied.which of the following is the best conclusion you can make about the life cycle of this cell ? a) the cell is ready to undergo mitosis.and a chemical signal will send the cell to prophase b)the cell is undergoing meiosis and will cross over the genetic material next c)the cell is in the s phase of interphase and will move next to the g2 phase d) the cell is in the g2 phase of the interphase and is ready to begin diving