Photosynthesis

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Across
  1. 4. producing two identical replicas of DNA from one original DNA molecule
  2. 6. the stage cell division in which the chromosomes move away from one another
  3. 10. the positively charged central core of an atom
  4. 11. the action or process of transcribing something.
Down
  1. 1. a minute cylindrical organelle near the nucleus in animal cells, occurring in pairs and involved in the development of spindle fibers in cell division.
  2. 2. each of the two threadlike strands into which a chromosome divides longitudinally during cell division.
  3. 3. a compound found in living tissue as a constituent base of nucleic acids. It is paired with guanine in double-stranded DNA.
  4. 5. (of a disease) very virulent or infectious.
  5. 7. containing two complete sets of chromosomes, one from each parent.
  6. 8. (of a disease) not harmful in effect
  7. 9. thread-like structures located inside the nucleus of animal and plant cells
  8. 12. The life of a cell
  9. 13. a swelling of a part of the body