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






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






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






4. Process by which an organism is slowly turned to stone as the body is replaced by minerals.






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






6. Is any chromosome that is not a sex chromosome.






7. Separation of species or populations so that they cannot interbreed and produce fertile offspring






8. Molecules that join together to form DNA and RNA. Monomers that make up a nucleic acid






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






10. A DNA strand that has the bases CTAATGT forms a complete complementary double helix with






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






12. 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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13. Gene

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






15. 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.






16. The capacity of an individual of certain genotype to reproduce. It is usually equal to the proportion of the individual's genes in all the genes of the next generation






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






18. 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






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






20. Trait evolves overtime; NO common ancestry






21. An equilibrium in the occurence of two or more different froms within the same population usually caused by different allele combiinations of a gene






22. A process that results in an allele having a different probability of remaining in the gene pool compared with that of another allele






23. Nucleotides that control which amino acids are added during protein synthesis






24. Speciation preceded by a period of geographical isolation






25. Periods of rapid evolution punctuated by periods of little change






26. A unique combination of traits that are passed down from one generation to another.






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






28. A change in the base sequence of a gene






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






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






31. You mate the unknown genotype with an organism showing the recessive trait. If any of the offspring show the recessive trait - the original unknown parent was heterozygous. If no recessive trats show up - the original parent was homozygous.






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






33. A distinct population of a species that varies from other populations of the same species.






34. A DNA double helix is held together in the center by between nitrogenous bases






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






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






37. It means chromosomes are paired. One of each chromosome in a pair originates from the father and one from the mother. They affect the same trait - but don't necessarily cause the same expression of the trait.






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






39. 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.






40. Of a cell or organism having two sets of homologous chromosomes or twice the haploid number






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






42. Cross where you cross unknown genotype with a recessive






43. 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






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. Another term for pure breeding






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






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






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






49. Situation in which allele frequencies remain constant






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