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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. Cell division in which the nucleus divides into nuclei containing the same number of chromosomes. Mitosis involves growth and repair and occurs in the body cells.






2. 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






3. Another name for a gene






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






5. Determined the concept of complementary base pairing






6. Three dimensional shape of organism made from a mold. May be created with plaster or over time with minerals.






7. Embryos of similar organisms have very similar early development indicating similar DNA at work






8. Process in which DNA is duplicated






9. A process where the organisms that have traits that aid in its survival (adaptive traits) will reproduce to pass that trait to futher generations thus increasing the frequency of that trait in the population. Vice versa traits that reduce the chance






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






11. Form of reproductive isolation in which structural differences in the anatomy of reproductive organs prevent sperm transfer between individuals of different species






12. Recognize and cut DNA at specific sequences usually palindromes






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






14. A codon is made of...






15. A body cell






16. The condition in which there is no change in allele frequencies from generation to generation (i.e. no evolution)






17. Separates DNA by size






18. 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






19. Transfer RNA; type of RNA that carries amino acids to the ribosome






20. DNA that is coiled around proteins






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






22. Cross where you cross unknown genotype with a recessive






23. Any agent that can cause a change in DNA






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






25. Dna moves during electrophoresis because of...






26. Evolution of the earth - which is hypothesized to have been formed over 4.6 billion years ago.






27. One of the identical rods of a chromosome.






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






29. Organ that serves no useful function in an organism






30. process in which homologous chromosomes exchange portions of their chromatids during meiosis.






31. Features that are superficially similar but have different modes of development






32. Any indirect evidence of life preserved as an impression in rock; trails - footprints - tracks - burrows - and bite marks






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






34. Selection for the ability to obtain a mate






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






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






37. A change or error in the DNA sequence






38. 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






39. What happens during the process of translation






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






41. Chromosomes are collections of many






42. Movement of organisms ro of from a population






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






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






45. The preserved remains or traces of an organism that lived in the past






46. Visual expression of a trait






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






48. 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.






49. The formation of new species as a result of evolution






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