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Recombinant Dna Technology

Instructions:
  • Answer 50 questions in 15 minutes.
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  • 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. Way more offspring are produced than by sexual reproduction






2. Change in alleles due to random chance






3. 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






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






5. 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






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






7. Sexual partners chosen based on some characteristics






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






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






10. 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






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






12. The change in a populations genetics






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






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






15. Form of reproduction more used because it creates Variation






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






17. One extreme is selected over the other






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






19. Directional selection - Disruptive selection - Stabalizing






20. Capable of asexual reproduction; most are not






21. Selects for the extremes and against the middle






22. The organism with the most advantageous traits will survive






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






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






25. Direct competition for mates with the same sex






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






27. The idea that characteristics can enhance an organisms survival






28. Humans selecting certain traits in domestic organisms






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

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30. Sometimes different species share common ancestors






31. 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






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






33. Mate choice; one sex chooses their mate






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






35. 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






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






37. 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






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






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






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






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






43. A widely accepted idea with lots of evidence






44. Related organisms have similar development plans






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






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






47. Cells that can turn into other cells






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






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






50. Differences in appearances between the sexes