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






2. DNA that is coiled around proteins






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






4. Disappearance of a species from all parts of its geographical range






5. A limb with five digits (fingers)






6. Cell division in which the nucleus divides into nuclei containing the same number of chromosomes. Mitosis involves growth and repair and occurs in the body cells.






7. Heteros have a phenotype tintertmediate b/t phenotypes of the 2 homoz






8. 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






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






10. A type of barrier between species; the species remain isolated because male and femal gametes of the different species cannot fuse - or they die before they unite.






11. Mutation where an extra base is added






12. Organisms with a similar underlying structure - but different function. Example: bird - bat and dolphin 'arm'. Shows a common ancestral link.






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






14. Term used to refer to an organism that has two different alleles for the same trait. e.g Tt is the heterozygous genotype for Tall.






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






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






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






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






19. Form of reproductive isolation in which tere are differences in species courtship behavior






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






21. Gradual evolution within a lineage






22. In the event of a sperm fertilizing an egg of another species - mechanisms that prevent result being fruitful






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






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






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






26. Predicts the possible outcome of a genetic cross.






27. All the genes in a population. genes are added by reproduction and immigration and lost by death and emigration






28. Relatively rapid proliferation from an ancestral type into new types which fill a diversity of ecological niches






29. A point of overlap of paired chromatids at which fusion and exchange of genetic material (crossing over) occurs during prophase I of meiosis.






30. Is active during transcription






31. Transfer RNA; type of RNA that carries amino acids to the ribosome






32. Periods of little adaptive change






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






34. Gene

Warning: Invalid argument supplied for foreach() in /var/www/html/basicversity.com/show_quiz.php on line 183


35. Copying the code from DNA onto mRNA






36. The final product of transcription is...






37. It is the time from when the Earth formed and simple life - forms evolved (and it is the longest era)






38. An ancestor that two or more descendants have in common






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






40. Another name for a gene






41. What does DNA stand for...






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






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






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






45. DNA is made of...






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






47. Evolution of superficial phenotypic similarity of form as a result of similar selection pressures






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






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






50. Similar DNA sequences or protein structures (such as hemoglobin) may link different species to a similar ancestor.