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






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






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






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






5. Evolutionary process in which a species or related species folllow different evolutionary paths to eventually become less related






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






7. The specific location of a gene on a chromosome






8. Different alleles for a gene






9. Selection for the ability to obtain a mate






10. Is the genetic makeup of an organism (TT or Tt) ; All the combinations of genes you have for a certain trait.






11. When F1 is fully fertile but F2 has low fertility (rice - cotton)






12. Translation occurs in the...






13. Because of base pairing in DNA the amount of






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






15. Heteros have a phenotype tintertmediate b/t phenotypes of the 2 homoz






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






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






18. T or F a codon consist of three nucleotides






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






20. Cell division that produces reproductive cells or gamates.This occurs in the gonads (testicle and ovaries in animals) Here the chromosome number is halved the original amount. (each new cell has a haploid number = n) All daughter cells are not geneti






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






22. Name for oism with one dominant and one recessive allele






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






24. A trait that masks the expression of another trait






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






26. Found only in that country






27. Determined the complete double helical structure of DNA






28. The complete genetic material contained in an individual






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






30. Selection acting against the middle of a range of variation






31. A body cell






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






33. 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






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






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






36. Human - like species that existed millions of years ago as witnessed through fossil evidence.






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






38. DNA is made of...






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






40. Gradual evolution within a lineage






41. Building block of a protein






42. A fossil known to have lived in a particular geologic age that can be used to date the rock layer in which it is found






43. The banding pattern of a persons DNA after being cut and run on gel is called






44. Determined the concept of complementary base pairing






45. Group of individuals of the same species that live in the same area






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






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






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






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






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