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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. 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.






2. During transcription an RNA molecule is formed






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






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






5. Structure present in an organism however does NOT have a known function. May link organisms with similar vestigial structures. Example: appendix - coccyx bone - whale leg bones.






6. Is active during transcription






7. DNA that is coiled around proteins






8. Natural selection that causes the frequency of a particular allele to move in one direction






9. A mutation in which one nucleotide is replaced by another nucleotide






10. Are noncoding sequences in the gene that are removed from RNA after transcription






11. A combining of genes or characters different from what they were in the parents






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






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






14. The complete genetic material contained in an individual






15. Chromosomes are collections of many






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






17. Translation occurs in the...






18. A group of organisms whose members are sufficiently alike to be able to reproduce and produce fertile offspring and who are unable to reproduce with other such groups






19. A taxon originating from and including a single common ancestor






20. Identical alleles for a gene






21. Selection for the ability to obtain a mate






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






23. Group of similar organisms that can breed and produce fertile offspring






24. Organ no longer serves a function






25. Mating of an individual of unknown genotype but dominant phenotype w/ a homozygous recessive individual






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






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






28. A codon is made of...






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






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






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






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






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






34. Types of rocks formed after exposure to very high heat. Because of the high temperatures - fossils are not able to be recovered from these types of rocks. Absolute or radioactive dating is possible - however.






35. Gradual evolution within a lineage






36. Reciprocal evolution in two species as a result of the selection pressure each imposes upon the other






37. Process in which DNA is duplicated






38. 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






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






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






41. shape of a DNA molecule formed when two twisted DNA strands are coiled into a springlike structure and held together by hydrogen bonds between the bases.






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






43. Innate trait; shared ancestry






44. A body cell






45. A small simple structure (as a fertilized egg) from which new tissue can develop into a complete organism. It is also a cell






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






47. Different alleles for a gene






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






49. The independant evolution of similar traits - starting from a similar ancestral condition






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