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






2. Features that are superficially similar but have different modes of development






3. How many codons are needed to specify three amino acids






4. Predicts the possible outcome of a genetic cross.






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






6. A change or error in the DNA sequence






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






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






9. Synonym for protein; chain of amino acids






10. Is a base found in DNA and RNA. In DNA its partner is Thymine. In RNA its partner is Uracil






11. What is one benefit for having two strands of DNA?






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






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






14. The signal on a mRNA molecule that designates the end of the coding sequence is called the...






15. A group of organisms of the same species occupying a given area.






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






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






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






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






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






21. The number of times an allele appears in a population






22. A change in the base sequence of a gene






23. Trait evolves overtime; NO common ancestry






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






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






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






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






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






29. Because of base pairing in DNA the amount of






30. DNA is made of...






31. Independent segregation of genes during the formation of gametes






32. Translation occurs in the...






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






34. A geographic gradient in the extent to which a character is developed in a species






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






36. Change in a DNA sequence that affects genetic information






37. When a few individuals become isolated from a larger population - this smaller group may establish a new population whose gene pool is different from their source population.






38. Mating of 2 oism that differ in 2 characters






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






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






42. Identical alleles for a gene






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






44. Organisms with a similar underlying structure - but different function. Example: bird - bat and dolphin 'arm'. Shows a common ancestral link.






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






46. A process that results in an allele having a different probability of remaining in the gene pool compared with that of another allele






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






48. The movement of individuals into an area






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






50. Form of reproductive isolation in which tere are differences in species courtship behavior