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. Capable of asexual reproduction; most are not






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






3. Change in alleles due to random chance






4. The idea that characteristics can enhance an organisms survival






5. 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






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






7. The organism with the most advantageous traits will survive






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






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






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






11. Related organisms have similar development plans






12. Form of reproduction more used because it creates Variation






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






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






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


16. One extreme is selected over the other






17. Humans selecting certain traits in domestic organisms






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






19. A widely accepted idea with lots of evidence






20. Way more offspring are produced than by sexual reproduction






21. Cells that can turn into other cells






22. 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






23. Sexual partners chosen based on some characteristics






24. Sometimes different species share common ancestors






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






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






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






28. 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






29. Set sail on the HMS Beagle to travel the islands and areas for signs of evolution; First book written in 1839 'voyage of the Beagle'; Second book published in 1859 'The Origin of Species by means of Natural Selection






30. Directional selection - Disruptive selection - Stabalizing






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






32. 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






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






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






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






36. 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






37. The change in a populations genetics






38. Mate choice; one sex chooses their mate






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






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






41. Selects for the extremes and against the middle






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






43. 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






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






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






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






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






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






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






50. Differences in appearances between the sexes