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






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






3. Direct competition for mates with the same sex






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






5. Differences in appearances between the sexes






6. Mate choice; one sex chooses their mate






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






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






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






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






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






12. Way more offspring are produced than by sexual reproduction






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






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






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






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

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18. 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






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






20. Sometimes different species share common ancestors






21. The idea that characteristics can enhance an organisms survival






22. 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






23. Change in alleles due to random chance






24. One extreme is selected over the other






25. 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






26. 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






27. The change in a populations genetics






28. Capable of asexual reproduction; most are not






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






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






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






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






33. 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






34. Form of reproduction more used because it creates Variation






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






36. Selects for the extremes and against the middle






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






38. Sexual partners chosen based on some characteristics






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






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






41. A subset of a population colonizes a new area






42. The organism with the most advantageous traits will survive






43. A widely accepted idea with lots of evidence






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






45. 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






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






47. Selects for the middle and against the extremes






48. 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






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






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