Test your basic knowledge |

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. DNA is made of...






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






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






4. Actual remains of an organism such as bones - teeth - shells - etc.






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






6. Process in which DNA is duplicated






7. Is a base found in DNA and RNA. Cytosine pairs with Guanine in DNA






8. Movement of alleles into or out of a population due to the migration of individuals to or from the population






9. The environmental factors that favour certain phenotypes






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






11. The sum total of an organism's requirements; its way of life






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






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






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






15. Another name for a gene






16. The enzyme that binds to the promoter region of a gene during transcription is called...






17. Synonym for protein; chain of amino acids






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






19. Speciation preceded by a period of geographical isolation






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






21. Is the genetic makeup of an organism (TT or Tt) ; All the combinations of genes you have for a certain trait.






22. A codon is made of...






23. Individual that is heterozygous for two traits; shows the phenotype governed by the dominant alleles but carries the recessive alleles






24. Messenger RNA; type of RNA that carries instructions from DNA in the nucleus to the ribosome






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






26. 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






27. 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.






28. Change to a chromosome in which a fragment of the chromosome is removed






29. 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.






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






31. Building block of a protein






32. 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.






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






34. The banding pattern of a persons DNA after being cut and run on gel is called






35. A model for the evolution of different froms over a long period of time but with only slight chchanges occring between successive generations






36. When F1 is fully fertile but F2 has low fertility (rice - cotton)






37. Form of reproductive isolation in which structural differences in the anatomy of reproductive organs prevent sperm transfer between individuals of different species






38. Deoxyribonucleic acid carries the genetic code for the proper functioning of an organism. It is composed of 5 carbon sugar (deoxyribose) four bases Adenine - Thymine - Cytosine and Guanine. the sugar is bonded to a phosphate group. This forms a long






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






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






41. The backbone of DNA consist of...






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






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






44. An evolutionary 'branch' and its daughter 'twigs'






45. Change to a chromosome in which part of the chromosome is repeated






46. Chromosomes are collections of many






47. Is active during transcription






48. Independent segregation of genes during the formation of gametes






49. What is one benefit for having two strands of DNA?






50. A process where the organisms that have traits that aid in its survival (adaptive traits) will reproduce to pass that trait to futher generations thus increasing the frequency of that trait in the population. Vice versa traits that reduce the chance