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






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






3. Capable of asexual reproduction; most are not






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






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






6. 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






7. A widely accepted idea with lots of evidence






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






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






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

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11. Selects for the middle and against the extremes






12. Cells that can turn into other cells






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






14. Results in a genetically identical inidvidual






15. 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






16. Differences in appearances between the sexes






17. Sometimes different species share common ancestors






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






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






20. Change in alleles due to random chance






21. Selects for the extremes and against the middle






22. Humans selecting certain traits in domestic organisms






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






24. Way more offspring are produced than by sexual reproduction






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






26. The idea that characteristics can enhance an organisms survival






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






28. A subset of a population colonizes a new area






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






30. 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






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






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






33. One extreme is selected over the other






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






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






36. Form of reproduction more used because it creates Variation






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






38. 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






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






40. Sexual partners chosen based on some characteristics






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






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






43. Directional selection - Disruptive selection - Stabalizing






44. Related organisms have similar development plans






45. 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






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






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






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






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






50. 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