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






2. One extreme is selected over the other






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






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






5. Capable of asexual reproduction; most are not






6. The movement of genes between two populations e.g. migration - immigration






7. Directional selection - Disruptive selection - Stabalizing






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






9. Selects for the middle and against the extremes






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






11. Change in alleles due to random chance






12. 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






13. The change in a populations genetics






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






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






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. A subset of a population colonizes a new area






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






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






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






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






22. The idea that characteristics can enhance an organisms survival






23. Related organisms have similar development plans






24. The organism with the most advantageous traits will survive






25. 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






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






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






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






29. Way more offspring are produced than by sexual reproduction






30. 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






31. Cells that can turn into other cells






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






33. 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






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






35. Humans selecting certain traits in domestic organisms






36. 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






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






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






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






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






41. Direct competition for mates with the same sex






42. Form of reproduction more used because it creates Variation






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






45. Differences in appearances between the sexes






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






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






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






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






50. Mate choice; one sex chooses their mate