Test your basic knowledge |

Honors Freshman Science

Subject : science
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. The layer that surrounds the cell and holds everything in






2. When the chromatin fibers condense into chromosomes






3. The proportion of a particular phenotype in the population






4. One dominant and one recessive






5. Fused compound of the polar nuclei and the sperm cells that isn't used






6. Exactly the same as mitosis without any DNA replication






7. A piece of DNA that codes for a specific trait






8. The DNA information being transferred to mRNA






9. Eggs laid and then fertilized






10. A group of populations of different species that live and interact in the same place at the same time






11. When water moves into a cell and keeps going in until the membrane bursts






12. Species that show repetitive reproductive cycles






13. Local variation in climate produced by differences in elecation






14. A long whip-like tail used for movement






15. The contribution that each parent makes in producing and rearing offspring






16. Partner chromosomes similar in size & shape & and the position of their centromeres (XX)






17. Fossil record






18. Eggs laid and then fertilized






19. Provides genetic variation through recombination






20. Produces semen (1)






21. Microsporocyte after meiosis






22. TATA






23. A double ringed nitrogenous base






24. Stimulates contraction & prostaglandin release & and ejection of milk






25. When most are average and extremes are better






26. Required for making a boy a boy and sexual growth






27. A combination of natural selection and genetics






28. Lays down an RNA primer that allows the DNA polymerase to attach to the DNA strand






29. The number and proportion of people at each age in a population






30. A mating system in which a male mates with only one female during a breeding season






31. Stalk of the stamen






32. When individuals are evenly spaced & occurs because of territoriality or competition for resources or space






33. Fluid filled chamber that surrounds and protects the developing embryo in a land egg






34. The constricted region in a chromatid






35. The enzyme that links the Okazaki fragments






36. A grid that shows the possible combinations of alleles






37. When cells touch each other and stop dividing






38. An actively cooperating group of individuals belonging to the same species and often closely related






39. A disaccharide made from two glucoses & malt sugar






40. Aka chaparral & mixed scrub community with lower rainfall than in a deciduous forest






41. Produces semen (3)






42. Spacing






43. Coccus prokaryotic cells






44. Triggers mitosis when it binds with cyclins at high enough concentrations & survives mitosis






45. Separates sperm from the egg






46. Megasporocyte after meiosis






47. A protein that accelerates the thousands of different chemical reactions that take place in an organism






48. Aka aggregated distribution & occurs when resources in an area are clumbed & when there is limited seed dispersal or asexual reproduction & or when families/colonies all live together & good because the organisms can protect one another






49. The cycle that goes from oen organism to another in food chains and from living organisms to the abiotic environment and back






50. Breaking apart water