Identify the mitosis stage shown in cell E and in cell F in Fig. 1.1.
Microtubules are found inside cells that are undergoing mitosis, but they cannot be seen in Fig. 1.1. State the function of microtubules in mitosis.
State, with a reason, whether Fig. 1.1 shows animal tissue or plant tissue.
The DNA double helix unwinds and is split into two template strands when ................................................ bonds holding the two strands together are broken.
One template strand of DNA is copied in fragments. The enzyme ................................................ is needed to join the fragments into one continuous strand.
Complementary DNA nucleotides are added to the template strands, with the reaction catalysed by the enzyme ................................................ .
................................................ are regions of repeating nucleotide sequences at the ends of chromosomes that make it possible for DNA to keep replicating without genes being lost.