Biology

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Across
  1. 8. is the change in the frequency of an allele in a population due to random chance
  2. 9. the prevalence of dark-colored varieties of animals (especially moths) in industrial areas
  3. 10. the process by which a cell makes proteins using the genetic information carried in mRNA
  4. 14. gene expresses itself more strongly
  5. 17. the reduced genetic diversity which results when a population is descended from a small number of colonizing ancestors
  6. 18. is the oldest known bird, a bird-like dinosaur
  7. 20. the process by which a cell makes an RNA copy of a piece of DNA
  8. 23. informational flow from DNA to RNA
  9. 24. one of two or more alternative forms of a gene
Down
  1. 1. only females, results when one of the X chromosomes (23 chromosome) is missing or partially missing
  2. 2. is used to predict the genotypes of a particular cross or breeding experiment
  3. 3. is a method of dating rocks and minerals using Uranium isotopes
  4. 4. 9:3:3:1 phenotypic ratio of a dihybrid cross
  5. 5. cell division in sexually reproducing organisms
  6. 6. coat colors is linked to the X chromosome, they are nearly always female
  7. 7. a structure that has lost most or all of their ancestral function in a given species
  8. 11. the first codon of mRNA transcript translated by a ribosome signaling the start
  9. 12. region of crossing over between 2 chromosomes
  10. 13. a cell that contains a single set of chromosomes
  11. 15. a large RNA-protein complex that catalyses the removal of introns
  12. 16. a person has an extra 21st chromosome
  13. 19. a recessive disorder where the blood does not clot properly
  14. 21. is the process through which populations of living organisms adapt and change
  15. 22. similar structures that evolved from a common ancestor