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






2. One of the identical rods of a chromosome.






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






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






5. Chromosomes are collections of many






6. Messenger RNA; type of RNA that carries instructions from DNA in the nucleus to the ribosome






7. Separates DNA by size






8. Found only in that country






9. Nucleotides that control which amino acids are added during protein synthesis






10. The capacity of an individual of certain genotype to reproduce. It is usually equal to the proportion of the individual's genes in all the genes of the next generation






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






12. 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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13. Periods of little adaptive change






14. 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.






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






16. What does DNA stand for...






17. Identical alleles for a gene






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






19. Is a trait that is more expressed than another trait. Is written in capital letters for Genotype. E.g Tall genotype is TT or Tt where T is the allele for tall trait and t is the trait for small. T will be expressed more.






20. Process by which a ribosome uses the code on mRNA to make proteins






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






22. The movement of individuals into an area






23. The complete genetic material contained in an individual






24. Selection against one end of a range of variation - resulting in a progressive change in allele frequency






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






26. Is found in DNA






27. Determined the concept of complementary base pairing






28. Different alleles for a gene






29. Mating of an individual of unknown genotype but dominant phenotype w/ a homozygous recessive individual






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






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






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






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






34. Building block of a protein






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






36. Translation occurs in the...






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






38. The specific location of a gene on a chromosome






39. Type of rock made from small pieces of other rocks and organisms pressed together. Source of fossil preservation. Limited radioactive or absolute dating potential.






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






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






42. Evolution resulting from small specific genetic changes that can lead to a new subspecies






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






44. Disappearance of a species from all parts of its geographical range






45. Breeding organisms with specific traits in order to produce offspring with identical traits






46. Ribosomal RNA; type of RNA that makes up part of the ribosome






47. Which type of Rna functions as a blue print of the genetic code






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






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






50. Three mRNA nucleotides that code for a specific amino acid