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






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






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






4. One extreme is selected over the other






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






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






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






8. 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






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






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






11. 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






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






13. The idea that characteristics can enhance an organisms survival






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






15. Selects for the middle and against the extremes






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






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






18. The change in a populations genetics






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






20. 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






21. Way more offspring are produced than by sexual reproduction






22. Directional selection - Disruptive selection - Stabalizing






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






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






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






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






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






28. Humans selecting certain traits in domestic organisms






29. 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






30. Sexual partners chosen based on some characteristics






31. Cells that can turn into other cells






32. Related organisms have similar development plans






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






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






35. The organism with the most advantageous traits will survive






36. Form of reproduction more used because it creates Variation






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






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






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






40. A widely accepted idea with lots of evidence






41. Differences in appearances between the sexes






42. 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






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






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






45. Sometimes different species share common ancestors






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






47. Selects for the extremes and against the middle






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






49. A subset of a population colonizes a new area






50. 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