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






2. Differences in appearances between the sexes






3. Results in a genetically identical inidvidual






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






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






6. The idea that characteristics can enhance an organisms survival






7. Direct competition for mates with the same sex






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






9. One extreme is selected over the other






10. Capable of asexual reproduction; most are not






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


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






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






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






15. Related organisms have similar development plans






16. 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






17. 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






18. Mate choice; one sex chooses their mate






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






20. Cells that can turn into other cells






21. Sexual partners chosen based on some characteristics






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






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






24. Form of reproduction more used because it creates Variation






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






26. Change in alleles due to random chance






27. The organism with the most advantageous traits will survive






28. Directional selection - Disruptive selection - Stabalizing






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






30. Selects for the extremes and against the middle






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






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






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






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






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






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






37. 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






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






39. Sometimes different species share common ancestors






40. 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






41. 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






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






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






44. 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






45. Humans selecting certain traits in domestic organisms






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






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






48. The change in a populations genetics






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






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