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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. What does DNA stand for...






2. Genes contain instructions for assembling






3. A codon is made of...






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






5. Change in a DNA sequence that affects genetic information






6. A distinct population of a species that varies from other populations of the same species.






7. Similar DNA sequences or protein structures (such as hemoglobin) may link different species to a similar ancestor.






8. Of a cell or organism having two sets of homologous chromosomes or twice the haploid number






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






10. A change in the base sequence of DNA; the ultimate source of new alleles






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






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






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






14. A type of protein molecule found in the chromosomes of eukaryotic cells but not prokaryotic cells






15. Trait evolves overtime; NO common ancestry






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






17. Another name 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. 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






20. These prevent fertilization between species e.g. diff breeding season - mating behaviour






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






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






23. Because of base pairing in DNA the amount of






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






25. DNA is made of...






26. What happens during the process of translation






27. Building block of a protein






28. shape of a DNA molecule formed when two twisted DNA strands are coiled into a springlike structure and held together by hydrogen bonds between the bases.






29. Ribosomes are made of...






30. Which structure contains anticodons






31. Pea plants






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






33. A small simple structure (as a fertilized egg) from which new tissue can develop into a complete organism. It is also a cell






34. Synonym for protein; chain of amino acids






35. A type of natural selection in which genetic diversity decreases as the population stabilises on a particular trait value






36. The independant evolution of similar traits - starting from a similar ancestral condition






37. 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






38. Is a sequence of DNA that codes for a protein and thus determines a trait. This is because the sequence of bases code for certain proteins.






39. Term used to refer to an organism that has two identical alleles for a particular trait. e.g TT is the homozygous genotype for Tall.






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






41. Organ no longer serves a function






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






43. Process by which individuals that are better suited to their environment survive and reproduce most successfully; also called survival of the fittest






44. Closely related species occupying different habitats - niches preventing them from interbreeding






45. The backbone of DNA consist of...






46. An evolutionary 'branch' and its daughter 'twigs'






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






48. Translation occurs in the...






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






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