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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. Differences in appearances between the sexes






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






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






4. 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






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






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






7. A subset of a population colonizes a new area






8. The organism with the most advantageous traits will survive






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






10. 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






11. 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






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






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






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






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






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






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






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






20. Way more offspring are produced than by sexual reproduction






21. The idea that characteristics can enhance an organisms survival






22. Change in alleles due to random chance






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






24. Selects for the extremes and against the middle






25. Selects for the middle and against the extremes






26. 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






27. Results in a genetically identical inidvidual






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






29. A widely accepted idea with lots of evidence






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






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






32. 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






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






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






35. Directional selection - Disruptive selection - Stabalizing






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






37. Form of reproduction more used because it creates Variation






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






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






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






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






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






43. Sexual partners chosen based on some characteristics






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






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






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






47. The change in a populations genetics






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

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49. Sometimes different species share common ancestors






50. Related organisms have similar development plans