Modern Human Evolution

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Across
  1. 2. About one fifth of births today are performed by a ______ section
  2. 8. DNA found in this cell organelle can be used to study human evolution
  3. 10. A lack of _______ led to reduced birth weights upon the introduction of agriculture 10,000 years ago.
  4. 13. Dinosaur’s outcome following meteor strike
  5. 15. Bone whose width can determine whether childbirth will be obstructed
  6. 16. A functional and heritable trait that increases an organism’s likelihood of survival and reproduction, for example, lactase-persistence.
  7. 19. The introduction of ________ was likely responsible for evolutionary changes in both pelvic capacity and lactose-tolerance
  8. 21. Provides offspring with calories and Vitamin D
  9. 22. There is less of this gas at a higher altitude
Down
  1. 1. The Human _______ Project mapped out the complete set of the human genetic code
  2. 3. Lactose is a natural ________ in milk.
  3. 4. If certain advantageous characteristics are more prevalent than other traits, they might be ______ for
  4. 5. Many individuals in this location lack the -13910*T allele due to a lack of dairy in their diets
  5. 6. Basic structure or “building block” of DNA
  6. 7. Mechanism that gave rise to the -13910*T allele in humans
  7. 9. Strains of bacteria can develop _____ with the overuse of antibiotics
  8. 11. The enzyme that breaks down lactose
  9. 12. A taxon that modern species descended from
  10. 14. Drug-resistant pathogen
  11. 17. Difficult birth, e.g. obstructed labour due to position/size of the baby’s head
  12. 18. Single-base changes in DNA
  13. 20. ______ Revolution; 1970’s scientific advancement