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






2. Trait evolves overtime; NO common ancestry






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






4. A taxon originating from and including a single common ancestor






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






6. Change of an organism over time. This can be caused by changes in in habitat or need to adapt for survival.






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






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






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






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






11. A nucleotide of RNA is made of...






12. Recognize and cut DNA at specific sequences usually palindromes






13. Separates DNA by size






14. A group of organisms whose members are sufficiently alike to be able to reproduce and produce fertile offspring and who are unable to reproduce with other such groups






15. Because of base pairing in DNA the amount of






16. Features of different species tat are similar in function but not necessarily in structure and in which the similarity is not the result of common ancestry






17. The movement of genes between populations as a result of mating of migration






18. Process by which one species gives rise to two or more species






19. Is a base found in DNA and RNA. Cytosine pairs with Guanine in DNA






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






21. A body cell






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






23. Gradual evolution within a lineage






24. Deoxyribonucleic acid carries the genetic code for the proper functioning of an organism. It is composed of 5 carbon sugar (deoxyribose) four bases Adenine - Thymine - Cytosine and Guanine. the sugar is bonded to a phosphate group. This forms a long






25. A trait that masks the expression of another trait






26. The comparison of the structures of different organisms






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






28. Change to a chromosome in which part of the chromosome is repeated






29. Movement of organisms ro of from a population






30. Middle life (245-144 million years ago); rise of mammals and dinosaurs; the rise of birds; extinction of dinosaurs - rise of flowering plants






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






32. Term used to refer to an organism that has two different alleles for the same trait. e.g Tt is the heterozygous genotype for Tall.






33. Hybrid is sterile so biologically unfit






34. When zygote does not complete development or is physically weaker than normal






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






36. Synonym for protein; chain of amino acids






37. Found only in that country






38. Cross where you cross unknown genotype with a recessive






39. Organ no longer serves a function






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






41. 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






42. The environmental factors that favour certain phenotypes






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






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






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






46. 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.






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






48. Identical alleles for a gene






49. A limb with five digits (fingers)






50. Process in which DNA is duplicated