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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. Recognize and cut DNA at specific sequences usually palindromes






2. Another term for pure breeding






3. Gradual evolution within a lineage






4. Two alternative forms of a gene e.g Tall vs Short






5. Consists of all genes - including all the different alleles - that are present in a population






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






7. Independent segregation of genes during the formation of gametes






8. The study of the structures of different organisms - looking at homologous parts






9. Mutation where an extra base is added






10. Identical alleles for a gene






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






12. Even if the gametes of the two species meet - fertilization does not occur






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






14. Genes contain instructions for assembling






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






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






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






18. Change in a DNA sequence that affects genetic information






19. Mating of 2 oism that differ in 2 characters






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






21. A base found in DNA (but not in RNA). This base pairs with Adenine.






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






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






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






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






26. A type of protein molecule found in the chromosomes of eukaryotic cells but not prokaryotic cells






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






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






29. A genetic crosses that involve one trait. e.g TT plant crossed with tt plant has offspring who are heterozygous Tt.






30. Any agent that can cause a change in DNA






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






32. Dna moves during electrophoresis because of...






33. Separates DNA by size






34. Different alleles for a gene






35. Translation occurs in the...






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






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






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






39. Used radioactive sulfur and radioactive phosphorus to determine that DNA is the genetic material - by demonstrating that it is DNA that is injected by bacteriophages into bacterial cells during infection






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






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






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






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






44. A type of natural selection in which genetic diversity decreases as the population stabilises on a particular trait value






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






46. Hybrid is sterile so biologically unfit






47. The final product of transcription is...






48. A limb with five digits (fingers)






49. Ribosomes are made of...






50. An episode of large - scale extinction affecting many different groups of organisms within a short period of time