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






2. Recognize and cut DNA at specific sequences usually palindromes






3. The evolutionary history/geneology of a group of organisms (a tree thingy)






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






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






6. Another name for a gene






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






8. Speciation which does not involve a period of geographical separation






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






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






11. Describes the isolation of a physical barrier e.g. body of water (ocean) or mountains






12. Separates DNA by size






13. Gradual evolution within a lineage






14. Impression made from a organism in soft material such as sand or mud.






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






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






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






18. Independent segregation of genes during the formation of gametes






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






20. A type of barrier between species; the species remain isolated because male and femal gametes of the different species cannot fuse - or they die before they unite.






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






22. Trait where heterozygous is a blending of two alleles






23. Natural disaster eliminates most of the population - members left contribute the alleles for the new population.






24. Organ no longer serves a function






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






26. A codon is made of...






27. Dna moves during electrophoresis because of...






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






29. Process by which one species gives rise to two or more species






30. Translation occurs in the...






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






32. A nucleotide of RNA is made of...






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






34. When zygote does not complete development or is physically weaker than normal






35. DNA is made of...






36. Ribosomes are made of...






37. The backbone of DNA consist of...






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






39. What does DNA stand for...






40. During transcription an RNA molecule is formed






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






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






43. Chromosomes that determine the sex of an individual. These are X for female and Y for male. The female egg is an X while the male sperm can be X or Y






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






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






46. It is the time from when the Earth formed and simple life - forms evolved (and it is the longest era)






47. An ancestor that two or more descendants have in common






48. Relatively rapid proliferation from an ancestral type into new types which fill a diversity of ecological niches






49. Speciation preceded by a period of geographical isolation






50. Mutation where an extra base is added