Genetics and evolution

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Across
  1. 3. When two gametes fuse, the resulting has 46 chromosomes
  2. 5. All the organisms and physical environmental factors in an area form it
  3. 7. An organism’s characteristics are controlled by it
  4. 9. Each chromosome contains a long molecule of it
  5. 10. Along with Maurice Wilkins has been taking photos of DNA using X-rays.
Down
  1. 1. After a zygote has formed it occurs over and over again, forming a ball of cells.
  2. 2. In humans there are 23 different types of it
  3. 4. only contain 23 of chromosomes
  4. 6. Watson along with him used their own and other scientists’ data to build that model.
  5. 8. Charles Darwin and Alfred Russel Wallace both came up with the idea that it is natural selection happening over and over again, over a long period of time, that causes it