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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. Mate choice; one sex chooses their mate






2. Related organisms have similar development plans






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






4. 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






5. 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






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






7. Sexual partners chosen based on some characteristics






8. Change in alleles due to random chance






9. The change in a populations genetics






10. 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






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

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






13. Selects for the middle and against the extremes






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






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






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






17. A widely accepted idea with lots of evidence






18. Directional selection - Disruptive selection - Stabalizing






19. 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






20. Direct competition for mates with the same sex






21. Capable of asexual reproduction; most are not






22. Way more offspring are produced than by sexual reproduction






23. Selects for the extremes and against the middle






24. 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






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






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






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






28. The idea that characteristics can enhance an organisms survival






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






30. Sometimes different species share common ancestors






31. 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






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






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






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






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






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






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






38. Differences in appearances between the sexes






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






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






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






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






43. Results in a genetically identical inidvidual






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






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






46. Humans selecting certain traits in domestic organisms






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






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






49. Cells that can turn into other cells






50. A subset of a population colonizes a new area