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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. 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






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






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






4. 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






5. Directional selection - Disruptive selection - Stabalizing






6. 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






7. 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






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






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






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






11. Mate choice; one sex chooses their mate






12. Humans selecting certain traits in domestic organisms






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






14. Change in alleles due to random chance






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






16. 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






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






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






19. 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






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






21. A subset of a population colonizes a new area






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






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






24. Capable of asexual reproduction; most are not






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






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






27. Way more offspring are produced than by sexual reproduction






28. Selects for the middle and against the extremes






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






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






31. One extreme is selected over the other






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

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34. Results in a genetically identical inidvidual






35. The change in a populations genetics






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






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






38. Cells that can turn into other cells






39. Differences in appearances between the sexes






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






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






42. Sexual partners chosen based on some characteristics






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






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






45. The idea that characteristics can enhance an organisms survival






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






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






48. Related organisms have similar development plans






49. Direct competition for mates with the same sex






50. 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