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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. The adaptive increase in pigmentation as a result of human - induced pollutants






2. Periods of little adaptive change






3. Type of rock made from small pieces of other rocks and organisms pressed together. Source of fossil preservation. Limited radioactive or absolute dating potential.






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






5. Is found in DNA






6. 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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7. A pairing where the parent plants differ in only one character.






8. Visual expression of a trait






9. A change in the base sequence of a gene






10. Speciation which does not involve a period of geographical separation






11. The movement of genes between populations as a result of mating of migration






12. Trait evolves overtime; NO common ancestry






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






14. Is a base found in DNA and RNA. In DNA its partner is Thymine. In RNA its partner is Uracil






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






16. Era of recent life that began about 66 million years ago and continues today; includes the first appearance Hominids






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






18. Selection against one end of a range of variation - resulting in a progressive change in allele frequency






19. A mutation in which one nucleotide is replaced by another nucleotide






20. The movement of individuals into an area






21. The region of the chromosome that holds the two sister chromatids together during mitosis






22. The inherited characteristic often masked by the dominant characteristic and not seen in an organism. e.g. Tt plant will still be tall. Where T is the dominant trait for tall and t is the recessive trait for small.






23. Breeding organisms with specific traits in order to produce offspring with identical traits






24. The study relating the evolution of new charateristics to changes in the genes controlling development






25. The molecules responsible for bringing amino acids to the ribosome during protein synthesis are






26. Synonym for protein; chain of amino acids






27. Transcrition occurs in the...






28. A group of organisms whose members are sufficiently alike to be able to reproduce and produce fertile offspring and who are unable to reproduce with other such groups






29. Building block of a protein






30. When zygote does not complete development or is physically weaker than normal






31. Evolution of the earth - which is hypothesized to have been formed over 4.6 billion years ago.






32. Closely related species occupying different habitats - niches preventing them from interbreeding






33. Organism is preserved at very low temperatures. Preservation of both hard and soft parts can occur.






34. One of the types of fossils made from hardened tree resin. Preserves both hard and soft parts.






35. Recognize and cut DNA at specific sequences usually palindromes






36. Process by which individuals that are better suited to their environment survive and reproduce most successfully; also called survival of the fittest






37. The formation of new species as a result of evolution






38. The complete genetic material contained in an individual






39. A group of organisms of the same species occupying a given area.






40. What does DNA stand for...






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






42. 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.






43. A geographic gradient in the extent to which a character is developed in a species






44. Natural selection that causes the frequency of a particular allele to move in one direction






45. DNA is made of...






46. A change in the base sequence of DNA; the ultimate source of new alleles






47. What happens during the process of translation






48. Used x ray cyrstallography to create an image of DNA






49. The condition in which there is no change in allele frequencies from generation to generation (i.e. no evolution)






50. Science dealing with DNA and protein synthesis of living organisms. Manipulation of DNA.