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Recombinant Dna Technology

Instructions:
  • Answer 50 questions in 15 minutes.
  • If you are not ready to take this test, you can study here.
  • Match each statement with the correct term.
  • Don't refresh. All questions and answers are randomly picked and ordered every time you load a test.

This is a study tool. The 3 wrong answers for each question are randomly chosen from answers to other questions. So, you might find at times the answers obvious, but you will see it re-enforces your understanding as you take the test each time.
1. Direct competition for mates with the same sex






2. Cells that can become any cell in the body; found in the embryo






3. Came up with the term Uniformitarianism(mechanisms for change in the past still occur today; believed at first there was no evolution






4. Pharmaceutical animals; cloned animals used ot produce products for humans


5. Believed that change was gradual;Gradualism(the mechanisms of the world - then - are the same today)






6. Forms that show how an organisms anatomy change over time






7. Heterozygous chromosomes have an affect on an individuals genetics/alleles






8. The screening of embryos for genetic disorders; done in In Vitro fertilization(fertilization in a petri dish); PGD removes one cell from the embryo and screens it genetically; embryos with disorders are discarded - ones without are kept and implanted






9. The process of sperm sorting; separating the male sperm from the female sperm; difference told by swimming speed; boy sperm swim faster than girl sperm; Theory might have flaws in it though - only works 50% of the time






10. A group of interbreeding organisms living in the same place at the same time






11. Sometimes different species share common ancestors






12. Humans selecting certain traits in domestic organisms






13. Choosing the sperm/egg/embryo that will produce the desired child depending on DNA(genes)






14. When a population becomes smaller and a few individuals survive the event






15. Subset of natural selection that increases the likelihood of mating specifically






16. Selects for the middle and against the extremes






17. All species on earth are fixed; no changes - no new species - no extinction






18. Change in the DNA sequence of an individual; the only true way to get a new allele; the source of all heritable variation






19. 1.edits existing variation by using the material it has(variation that exists in population/ no new traits created by natural selection) 2. Has historical constraints(change in old structures) 3. Adaptations are compromises (good for one thing - bad






20. Cells that can become only a few different types of cells; mostly adult stem cells; found in bone marrow - the skin epidermis - etc; can sometimes be turned into Totipotent stem cells






21. Cells that can turn into other cells






22. Sexual partners chosen based on some characteristics






23. Another method designed to sort female sperm form male sperm; goes by size of sperm; females are bigger than male sperm






24. Number of offspring in the next generation; your contribution to the gene pool






25. A widely accepted idea with lots of evidence






26. A process to help separate DNA fragments using an electrical current; helps to compare DNA samples by fragment pattern






27. Way more offspring are produced than by sexual reproduction






28. Comparing an unknown sample of DNA to a known sample by using Gel Electrophoresis; used in crime scenes - paternity tests - and remains identification






29. Invented the binomial method(naming of species); also believed that life was fixed






30. Closely related organisms have more similar DNA sequences and protein structures






31. Came up with the term catastrophism(sudden events that lead to extinction - but not in todays time)






32. The more common a trait becomes the more likely it will be selected against






33. The change in a populations genetics






34. Results in a genetically identical inidvidual






35. Form of reproduction more used because it creates Variation






36. Traits that are neither advantageous nor disadvantageous; there is no selection






37. Differences in appearances between the sexes






38. Theory of a stable - nonevolving population in which frequency of alleles do not change; only occurs in large - isolated populations with random mating - and no natural selection or mutations






39. Mate choice; one sex chooses their mate






40. An accumulation of genetic charges over a certain amount of time






41. In related organisms the underlying anatomy is similar even when the function is different






42. The organism with the most advantageous traits will survive






43. A subset of a population colonizes a new area






44. Distribution of organisms related to evolution; different organisms play the same roles on different continents; island organisms resemble organisms on nearby mainland






45. Selection fro or against environment; leads to evolution only if variation has genetic components






46. One extreme is selected over the other






47. Set sail on the HMS Beagle to travel the islands and areas for signs of evolution; First book written in 1839 'voyage of the Beagle'; Second book published in 1859 'The Origin of Species by means of Natural Selection






48. Results in a tissue or an organ that is identical to the DNA donor






49. The idea that characteristics can enhance an organisms survival






50. Change in alleles due to random chance