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Created by Terri Street © 2000 Background images courtesy of abc.com 1,000,000 500,000 250,000 125,000 64,000 32,000 16,000 8,000 4,000 2,000 1,000 500 300 200 100 Click to return to question, Cont-P to switch to the pen, cross out two incorrect answers, then Cont-A to switch back to pointer. Click to return to the question and poll the class Click on link to Ask Jeeves, or click on this oval to return to question and ask a friend Which DOESN’T belong? A. Bones C. DNA B. Remains of organisms D. Footprints C. DNA Back to Board Used to determine the actual age of a fossil. A. Relative dating B. Amino acid sequence C. Radiometric or Radioactive dating D. Bone structure C. Radiometric or Radioactive dating Back to Board Scientists believe that these organisms were most likely the first on Earth. A. viruses B. photosynthetic prokaryotes C. heterotrophic prokaryotes D. eukaryotes C. heterotrophic prokaryotes Back to Board This gas is believed to be absent from early Earth. A. Methane B. Hydrogen C. Nitrogen D. oxygen D. oxygen Back to Board All are needed for natural selection EXCEPT A. variations B. survival of the fittest C. mutations D. individually acquired adaptations D. individually acquired adaptations Back to Board The scientist who first proposed natural selection to address evolution A. Darwin B. Hooke C. Mendel D. LaMarck A. Darwin Back to Board Evolution occurs because Needs changes to survive B. organisms that already have adaptations survive & reproduce C. Adaptations are D. populations ALWAYS adapt A. an organism acquired over a lifetime B. organisms that already have adaptations survive & reproduce Back to Board A whale’s flipper & a human arm are examples of A. analagous structures B. homologous structures C. vestigial structures D. homozygous structures B. homologous structures Back to Board DNA DOES NOT contain A. nitrogen bases B. deoxyribose sugar C. phosphate D. glucose sugar D. glucose sugar Back to Board RNA is made from a DNA template in this process A. transcription B. replication C. translation D. respiration A. transcription Back to Board Protein synthesis or translation involves all but A. ribosomes B. tRNA C. nucleotides D. replication D. replication Back to Board The blood types A, B, AB, and O are an example of all but the following: A. codominance B. multiple alleles C. incomplete dominance D. dominance C. incomplete dominance Back to Board Mating a homozygous recessive individual with an unknown genotype is a A. dihybrid cross C. test cross B. monohybrid cross D. Punnett Square C. test cross Back to Board This chart provides information on #chromosomes A. Punnett Square B. Karyotype C. pedigree D. Venn diagram B. Karyotype If 2 nitrogen bases are deleted from a DNA sequence it is a A. point mutation B. chromosomal mutation C. frameshift mutation D. substitution Mutation E. Both a and c. F. Both c and d E. Both a and c Back to Board Sorry, try again! Thanks for playing!