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Recombinant Dna Technology

Instructions:
  • Answer 50 questions in 15 minutes.
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  • 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. Related organisms have similar development plans






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






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






4. Cells that can turn into other cells






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






6. Results in a genetically identical inidvidual






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






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






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






10. Selects for the extremes and against the middle






11. First to publish mechanisms for evolution; Had 2 idea: Use and disuse - use it more gets bigger; less it disappears - Inheritance of acquired characteristics - pass on changes to offspring






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






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






14. The organism with the most advantageous traits will survive






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






16. Selects for the middle and against the extremes






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






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






19. 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






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






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






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

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23. Way more offspring are produced than by sexual reproduction






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






25. Capable of asexual reproduction; most are not






26. Humans selecting certain traits in domestic organisms






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






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






29. Form of reproduction more used because it creates Variation






30. The idea that characteristics can enhance an organisms survival






31. Change in alleles due to random chance






32. Directional selection - Disruptive selection - Stabalizing






33. 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






34. Mate choice; one sex chooses their mate






35. One extreme is selected over the other






36. 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






37. 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






38. Sometimes different species share common ancestors






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






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






41. 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






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






43. Sexual partners chosen based on some characteristics






44. 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






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






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






47. Differences in appearances between the sexes






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






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






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