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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. A subset of a population colonizes a new area






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






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






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






5. Capable of asexual reproduction; most are not






6. 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






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






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






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






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






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






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






13. A widely accepted idea with lots of evidence






14. Cells that can turn into other cells






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






16. Form of reproduction more used because it creates Variation






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






18. Differences in appearances between the sexes






19. Related organisms have similar development plans






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






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






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






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






24. One extreme is selected over the other






25. The idea that characteristics can enhance an organisms survival






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






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






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






29. Directional selection - Disruptive selection - Stabalizing






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






31. Sometimes different species share common ancestors






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






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






34. 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






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

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






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






38. The change in a populations genetics






39. 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






40. Sexual partners chosen based on some characteristics






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






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






43. Mate choice; one sex chooses their mate






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






45. Way more offspring are produced than by sexual reproduction






46. Direct competition for mates with the same sex






47. The organism with the most advantageous traits will survive






48. Humans selecting certain traits in domestic organisms






49. 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






50. Change in alleles due to random chance