Before mitosis can occur, dna replication must occur. this dna replication results in 2 identical copies of the dna joined at the centromere. during anaphase of mitosis, these identical copies of dna, called are pulled apart to opposite poles of the cell.

a) genes

b) chromatin

c) sister chromatids

d) daughter chromatids

Fill in the blank 1. digestion occurs in the small intestine through the action of enzymes. 2. urea, excess water, and other waste materials are eliminated in a water fluid called 3. can cause infections by injecting dna or rna into hosts. 4. the human immune system produces in response to a vaccine, which later can bind to and destroy a pathogen if it invades. 5. are structures that link bone to bone at a joint 6. in the heart, blood flows from the right atrium to the right ventricle, where it is pumped to the the words i can use are: lymphocytes gliding pivot gas urine absorption dermis fulcrum lungs chemical viruses capillary vertebrae esophagus tendons antibodies synapses ligaments kidneys pathogens