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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. 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






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






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






6. A widely accepted idea with lots of evidence






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






8. Humans selecting certain traits in domestic organisms






9. Directional selection - Disruptive selection - Stabalizing






10. 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






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






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






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






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






16. 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






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






18. 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






19. The idea that characteristics can enhance an organisms survival






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






23. Related organisms have similar development plans






24. 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






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






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






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






28. Results in a genetically identical inidvidual






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






30. Capable of asexual reproduction; most are not






31. Sexual partners chosen based on some characteristics






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






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






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






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

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






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






38. 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






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






40. Mate choice; one sex chooses their mate






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






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






43. Way more offspring are produced than by sexual reproduction






44. Differences in appearances between the sexes






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






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






47. Cells that can turn into other cells






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






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






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