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






2. During transcription an RNA molecule is formed






3. One of the identical rods of a chromosome.






4. Similar embryological structures in different species - such as gill slits - may demonstrate that these species share a common ancestor.






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






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






7. Genes contain instructions for assembling






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






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






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






11. Another name for a gene






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






13. The reduction of a population - typically by a natural disaster - such that the surviving population is no longer genetically representative of the original population.






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






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






16. Found only in that country






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






18. Identical alleles for a gene






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






20. Visual expression of a trait






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






22. Process in which DNA is duplicated






23. Determined the complete double helical structure of DNA






24. Building block of a nucleic acid (DNA and RNA)






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






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






27. How often a form of a gene appears in a gene pool






28. The evolutionary process by which a species becomes better suited to its niche.






29. Trait evolves overtime; NO common ancestry






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






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






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






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






34. The type of environment in which an organism or group normally lives or occurs






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






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






37. The adaptive increase in pigmentation as a result of human - induced pollutants






38. 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.






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






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






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






43. A pairing where the parent plants differ in only one character.






44. 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.






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






46. Pea plants






47. Any preserved remains of an organism from the past. Usually found in sedimentary rock.






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






49. The preserved remains or traces of an organism that lived in the past






50. 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







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