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






2. Differences in appearances between the sexes






3. Cells that can turn into other cells






4. Selects for the extremes and against the middle






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






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






7. 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






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






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






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






11. One extreme is selected over the other






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






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






14. The idea that characteristics can enhance an organisms survival






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






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






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






18. Sexual partners chosen based on some characteristics






19. Capable of asexual reproduction; most are not






20. Related organisms have similar development plans






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






22. Mate choice; one sex chooses their mate






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


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






25. Results in a genetically identical inidvidual






26. Humans selecting certain traits in domestic organisms






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






28. Change in alleles due to random chance






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






31. 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






32. Sometimes different species share common ancestors






33. 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






34. 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






35. Way more offspring are produced than by sexual reproduction






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






37. Form of reproduction more used because it creates Variation






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






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






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






41. The change in a populations genetics






42. 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






43. Directional selection - Disruptive selection - Stabalizing






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






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






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






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






49. Direct competition for mates with the same sex






50. 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






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