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






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






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






4. 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






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






6. 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






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






8. Differences in appearances between the sexes






9. The change in a populations genetics






10. Directional selection - Disruptive selection - Stabalizing






11. Way more offspring are produced than by sexual reproduction






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






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






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






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






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






17. Cells that can turn into other cells






18. A subset of a population colonizes a new area






19. Selects for the middle and against the extremes






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






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






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






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






24. A widely accepted idea with lots of evidence






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






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






27. Related organisms have similar development plans






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






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






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






31. Capable of asexual reproduction; most are not






32. 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






33. Selects for the extremes and against the middle






34. Change in alleles due to random chance






35. Direct competition for mates with the same sex






36. Sometimes different species share common ancestors






37. 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






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






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






40. 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






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






42. Sexual partners chosen based on some characteristics






43. The idea that characteristics can enhance an organisms survival






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






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






46. Form of reproduction more used because it creates Variation






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

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






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