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






2. A fossil known to have lived in a particular geologic age that can be used to date the rock layer in which it is found






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






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






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






6. Physical characteristics of an organism based on its genotype. e.g. Plant that has a genotype of TT will have a phenotype of Tall.






7. Situation in which allele frequencies remain constant






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






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






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






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






12. Large - scale evolutionary changes that take place over long periods of time






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






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






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






16. Genes contain instructions for assembling






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






18. Layers of compressed sedimentary rock demonstrate the order or sequence at which events occurred. Cannot delineate the exact point of time - but is able to distinguish the order of events.






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






20. A body cell






21. The structure on a tRNA molecule that allows it interact with an mRNA molecule






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






23. Organisms with similar functions - but different underlying structure. Example: bird and insect wing. These structures do NOT show a common ancestral link.






24. Copying the code from DNA onto mRNA






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






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






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






28. Mutation where an extra base is added






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






30. Trait evolves overtime; NO common ancestry






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






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






33. Type of sympatric speciation that occurs when a new species is formed because of a change in microhabitats






34. 2 alleles for a character separate during the formation of gametes - so that each gamete only carriers one allele for each character

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


35. Another name for a gene






36. 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.






37. All the factors in an organism's surroundings that can potentially affect it






38. 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






39. Found only in that country






40. A population partially isolated from other populations of the same species






41. Movement of organisms ro of from a population






42. 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






43. Mating of 2 oism that differ in 2 characters






44. 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.






45. The complete genetic material contained in an individual






46. Which structure contains anticodons






47. Cell division that produces reproductive cells or gamates.This occurs in the gonads (testicle and ovaries in animals) Here the chromosome number is halved the original amount. (each new cell has a haploid number = n) All daughter cells are not geneti






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






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






50. Building block of a protein