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CSET Genetics And Evolution

Subjects : cset, science, genetics
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. One of the identical rods of a chromosome.






2. Chromosomes that determine the sex of an individual. These are X for female and Y for male. The female egg is an X while the male sperm can be X or Y






3. A distinct population of a species that varies from other populations of the same species.






4. Any preserved remains of an organism from the past. Usually found in sedimentary rock.






5. The complete genetic material contained in an individual






6. Any indirect evidence of life preserved as an impression in rock; trails - footprints - tracks - burrows - and bite marks






7. Features of different species tat are similar in function but not necessarily in structure and in which the similarity is not the result of common ancestry






8. Which type of Rna functions as a blue print of the genetic code






9. A process that results in an allele having a different probability of remaining in the gene pool compared with that of another allele






10. The number of times an allele appears in a population






11. Copying the code from DNA onto mRNA






12. Features that are superficially similar but have different modes of development






13. Used radioactive sulfur and radioactive phosphorus to determine that DNA is the genetic material - by demonstrating that it is DNA that is injected by bacteriophages into bacterial cells during infection






14. Innate trait; shared ancestry






15. A base found in DNA (but not in RNA). This base pairs with Adenine.






16. When chromosome is changed by radiation and chemicals - results a permanent structural change in the chromosome - which will no longer be able to pair with its homologous pair. Eg - deletion - duplication - inversion and translocation.






17. Earth's history organized into four eras: Precambrian - Paleozoic - Mesozoic - and Cenozoic






18. To create a recombinant DNA molecule - one would have to first cut two DNAs with creating before pasting them together






19. What does DNA stand for...






20. Change in a DNA sequence that affects genetic information






21. Middle life (245-144 million years ago); rise of mammals and dinosaurs; the rise of birds; extinction of dinosaurs - rise of flowering plants






22. Separates DNA by size






23. The signal on a mRNA molecule that designates the end of the coding sequence is called the...






24. T or F a codon consist of three nucleotides






25. 2 alleles for a character separate during the formation of gametes - so that each gamete only carriers one allele for each character

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26. Genes contain instructions for assembling






27. Molecules that join together to form DNA and RNA. Monomers that make up a nucleic acid






28. Describes a cell - nucleus - or organism that has only one set of unpaired chromosomes






29. DNA that is coiled around proteins






30. Recognize and cut DNA at specific sequences usually palindromes






31. Is a base found in DNA and RNA. This base pairs with Cytosine in DNA






32. Ribosomal RNA; type of RNA that makes up part of the ribosome






33. A taxon originating from and including a single common ancestor






34. Uses metamorphic or igneous rock - calculates the age of an object by assessing the amount of radioactive element still present in the organism. Radioactive elements are slowly lost over time because of decay.






35. The evolutionary history/geneology of a group of organisms (a tree thingy)






36. Organ that serves no useful function in an organism






37. Method of replication that implies that each new strand of DNA is half original and half new






38. How often a form of a gene appears in a gene pool






39. The backbone of DNA consist of...






40. Pea plants






41. Synonym for protein; chain of amino acids






42. Condition in which an organism has extra sets of chromosomes






43. Embryos of similar organisms have very similar early development indicating similar DNA at work






44. Periods of rapid evolution punctuated by periods of little change






45. Trait evolves overtime; NO common ancestry






46. Selection acting against the extremes of a range of variation - resulting in resistance to change in allele frequencies






47. The final product of transcription is...






48. The preserved remains or traces of an organism that lived in the past






49. When a few individuals become isolated from a larger population - this smaller group may establish a new population whose gene pool is different from their source population.






50. Types of rocks formed after exposure to very high heat. Because of the high temperatures - fossils are not able to be recovered from these types of rocks. Absolute or radioactive dating is possible - however.