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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. Mutation - Natural selection - Genetic drift - Bottleneck effect - Founder effect - Gene flow - and Mate choice/non - random mating






2. The idea that characteristics can enhance an organisms survival






3. 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






4. Form of reproduction more used because it creates Variation






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






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






7. Direct competition for mates with the same sex






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






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






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






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






12. Related organisms have similar development plans






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






14. The organism with the most advantageous traits will survive






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






16. Taking good genes to replace bad genes; almost never works; has unintended side effects; sometimes just doesn't work; protein becomes degraded - etc






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






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






19. 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






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






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






22. Humans selecting certain traits in domestic organisms






23. Capable of asexual reproduction; most are not






24. Cells that can turn into other cells






25. Results in a genetically identical inidvidual






26. A widely accepted idea with lots of evidence






27. A subset of a population colonizes a new area






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


29. Directional selection - Disruptive selection - Stabalizing






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






31. Sexual partners chosen based on some characteristics






32. 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






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






34. Cuts DNA in specific sites; the fragments created are usually predictable






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






36. A circular piece of DNA in bacteria where the gene is placed in Recom. DNA technology






37. Selects for the extremes and against the middle






38. Selects for the middle and against the extremes






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






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






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






42. Can make large quantities of product; infection free; less expensive than a natural source






43. 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






44. Scientific explanation of how life changes over time - science is based off of evidence - science is obtained with observation and testing - science is always open to question






45. Sometimes different species share common ancestors






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






47. 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






48. Recessive traits persistent to a certain population; recessive alleles hide from selection






49. Takes the gene from a needed product - puts it into another organism (usually bacteria) and it will make duplicates of the product






50. One extreme is selected over the other