Test your basic knowledge |

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






2. Direct competition for mates with the same sex






3. A subset of a population colonizes a new area






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






5. Change in alleles due to random chance






6. The idea that characteristics can enhance an organisms survival






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






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






9. 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






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






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






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






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






14. Directional selection - Disruptive selection - Stabalizing






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






16. Way more offspring are produced than by sexual reproduction






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






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






19. Sometimes different species share common ancestors






20. Mate choice; one sex chooses their mate






21. A widely accepted idea with lots of evidence






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






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






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






25. 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






26. Capable of asexual reproduction; most are not






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






28. Sexual partners chosen based on some characteristics






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






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






31. Selects for the extremes and against the middle






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






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


34. Selects for the middle and against the extremes






35. The organism with the most advantageous traits will survive






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






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






38. One extreme is selected over the other






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






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






41. 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






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






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






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






45. Cells that can turn into other cells






46. Results in a genetically identical inidvidual






47. The change in a populations genetics






48. 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






49. 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






50. Form of reproduction more used because it creates Variation