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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. Evolution of living things - based on evidence from the past and present.






2. Evolution resulting from small specific genetic changes that can lead to a new subspecies






3. Building block of a protein






4. The gradual changes in gene frequencies in a population due to random events






5. 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.






6. Evolutionary process in which a species or related species folllow different evolutionary paths to eventually become less related






7. The gradual changes in gene frequencies in a population due to random events






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






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






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






11. How often a particular gene occurs in the population






12. Independent segregation of genes during the formation of gametes






13. These prevent fertilization between species e.g. diff breeding season - mating behaviour






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






15. Human - like species that existed millions of years ago as witnessed through fossil evidence.






16. 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.






17. Organ no longer serves a function






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






19. T or F A cloned organism has the same proteins as another organism






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






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






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






23. Is the evolutionary process whereby a population becomes better suited to its habitat






24. The individuals choice of which mate they will choose. The choice is dependant on what traits the individual finds attractive. e.g some people will want their mates to be smart or pretty.






25. Selection for the ability to obtain a mate






26. Translation occurs in the...






27. Change of an organism over time. This can be caused by changes in in habitat or need to adapt for survival.






28. Trait evolves overtime; NO common ancestry






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






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






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






32. Because of base pairing in DNA the amount of






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






34. Even if the gametes of the two species meet - fertilization does not occur






35. A type of protein molecule found in the chromosomes of eukaryotic cells but not prokaryotic cells






36. Form of reproductive isolation in which two populations reproduce at different times






37. Change in allele frequencies as a result of the migration of a small subgroup of a population






38. Shows how the embryos of different groups resemble each other at particular stages. Similarities indicate groups may share a common ancestor






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






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






41. Structures in different but related species that are derived from the same ancestral structure but now serve different purposes.






42. Inherited feature that tends to prevent species from interbreeding with other species






43. A copy of a gene is made during a process called this






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






45. Mutation where an extra base is added






46. 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.






47. Populations that can interbreed with neighboring populations but not with populations separated by larger geographical distances






48. 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






49. Building block of a nucleic acid (DNA and RNA)






50. The specific location of a gene on a chromosome







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