Test your basic knowledge |

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






2. Which structure contains anticodons






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






4. Synonym for protein; chain of amino acids






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






6. Innate trait; shared ancestry






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






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






9. Organ no longer serves a function






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






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






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






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






14. Found only in that country






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






16. Hybrid is sterile so biologically unfit






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






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






19. Type of sympatric speciation that occurs when a new species is formed because of a change in microhabitats






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






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






22. Independent segregation of genes during the formation of gametes






23. Transcrition occurs in the...






24. The molecules responsible for bringing amino acids to the ribosome during protein synthesis are






25. The comparison of the structures of different organisms






26. 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






27. When chromosome is changed by radiation and chemicals - results a permanent structural change in the chromosome - which will no longer be able to pair with its homologous pair. Eg - deletion - duplication - inversion and translocation.






28. The environmental factors that favour certain phenotypes






29. Determined the concept of complementary base pairing






30. 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






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






32. Recognize and cut DNA at specific sequences usually palindromes






33. Any agent that can cause a change in DNA






34. An organism that has characteristics resulting from chromosomal alteration. This is a result of crossing over of the chromosomes during Meiosis - mutations and random segregation.






35. Dna moves during electrophoresis because of...






36. The study of the past and present distribution of species.






37. Because of base pairing in DNA the amount of






38. Identical alleles for a gene






39. T or F a codon consist of three nucleotides






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






41. Natural selection that causes the frequency of a particular allele to move in one direction






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






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






44. 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.






45. Proteins are made of...






46. A limb with five digits (fingers)






47. The inherited characteristic often masked by the dominant characteristic and not seen in an organism. e.g. Tt plant will still be tall. Where T is the dominant trait for tall and t is the recessive trait for small.






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






49. Translation occurs in the...






50. The offspring of a cross between two inbred lines within a single species. May also refer to the offspring of across between two species