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

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






3. One extreme is selected over the other






4. Differences in appearances between the sexes






5. Selects for the extremes and against the middle






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






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






8. 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






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






10. A subset of a population colonizes a new area






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






12. 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






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. Direct competition for mates with the same sex






15. Results in a genetically identical inidvidual






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






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






18. Sexual partners chosen based on some characteristics






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






20. The idea that characteristics can enhance an organisms survival






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






22. Sometimes different species share common ancestors






23. The change in a populations genetics






24. Change in alleles due to random chance






25. 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






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






27. 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






28. Directional selection - Disruptive selection - Stabalizing






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






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






31. Capable of asexual reproduction; most are not






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






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






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






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. Selects for the middle and against the extremes






37. The organism with the most advantageous traits will survive






38. 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






39. 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






40. A widely accepted idea with lots of evidence






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






42. Humans selecting certain traits in domestic organisms






43. Cells that can turn into other cells






44. Way more offspring are produced than by sexual reproduction






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






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






47. Related organisms have similar development plans






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






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






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