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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. Way more offspring are produced than by sexual reproduction






2. 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






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






4. Cells that can turn into other cells






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






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






7. 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






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






9. Capable of asexual reproduction; most are not






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






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






12. 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






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






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






15. Humans selecting certain traits in domestic organisms






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






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






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






19. The change in a populations genetics






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






21. 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






22. Direct competition for mates with the same sex






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






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






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






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






27. Sometimes different species share common ancestors






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






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






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






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






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






33. Selects for the extremes and against the middle






34. 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






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






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






37. Change in alleles due to random chance






38. The idea that characteristics can enhance an organisms survival






39. Sexual partners chosen based on some characteristics






40. Results in a genetically identical inidvidual






41. A subset of a population colonizes a new area






42. The organism with the most advantageous traits will survive






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






44. 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






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






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






47. 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






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






49. Form of reproduction more used because it creates Variation






50. A widely accepted idea with lots of evidence