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






2. 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






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






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






5. The idea that characteristics can enhance an organisms survival






6. A subset of a population colonizes a new area






7. One extreme is selected over the other






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






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

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






11. Sometimes different species share common ancestors






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






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






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






15. Mate choice; one sex chooses their mate






16. Sexual partners chosen based on some characteristics






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






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






19. Form of reproduction more used because it creates Variation






20. Selects for the middle and against the extremes






21. 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






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






23. Selects for the extremes and against the middle






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






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






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






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






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






29. 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






30. Differences in appearances between the sexes






31. Capable of asexual reproduction; most are not






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






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






34. Direct competition for mates with the same sex






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






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






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






38. A widely accepted idea with lots of evidence






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






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






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






42. The organism with the most advantageous traits will survive






43. Related organisms have similar development plans






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






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






46. Way more offspring are produced than by sexual reproduction






47. Change in alleles due to random chance






48. 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






49. Directional selection - Disruptive selection - Stabalizing






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