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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. Form of reproduction more used because it creates Variation






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






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






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






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






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






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






8. One extreme is selected over the other






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

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10. The change in a populations genetics






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






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






13. Humans selecting certain traits in domestic organisms






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






15. Differences in appearances between the sexes






16. The organism with the most advantageous traits will survive






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






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






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






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






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






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






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






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






25. Cells that can turn into other cells






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






27. Directional selection - Disruptive selection - Stabalizing






28. Sexual partners chosen based on some characteristics






29. The idea that characteristics can enhance an organisms survival






30. Change in alleles due to random chance






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






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






33. Capable of asexual reproduction; most are not






34. 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






35. A widely accepted idea with lots of evidence






36. Results in a genetically identical inidvidual






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






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






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






40. Sometimes different species share common ancestors






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






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






43. Direct competition for mates with the same sex






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






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






46. 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






47. Mate choice; one sex chooses their mate






48. Way more offspring are produced than by sexual reproduction






49. 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






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