資訊推薦

• 18. When a mixture of glucose 6-phosphate and fructose 6-phosphate is incubated with the enzyme phos
• 37. Using the genetic code shown here, predict what type of mutation has occurred in the hemoglobin
• 19. If carbon 1 is the carbony 1 group of an aldopentose, which carbon determines if the sugar is a
• 20. In glycoproteins, the carbokydrate moiety is always attached through the amino acid residues: (A
• 21. Bacteria and other prokaryotic cells have the capacity to get more ATP\/glucose oxidized than e
• 32. What type of inhibitor Y is the following Lineweaver-Burk plot shown?1\/[S]1\/V1\/VMax1\/Km
• 22. The standard reduction potentials for the following half reactions are given. If you mixed succi
• 38. What type of mutation has occurred in the following?Normal allele 5'–GGAAUGAAACAGGAACCC–3&#
• 39. What type of mutation has occurred in the following?Normal allele 5'–GGAAUGAAACAGGAACCC–3&#
• 40. Sister chromatids are__? (A) genetically identical and attached to each other at the centromere；
• 41. The two main stages of the eukaryote cell cycle, in which the cell spends most of its time and m
• 42. The structure that organizes the protein subunits of the mitotic spindle is the__? (A) centrosom
• 43. How does the space between our fingers arise? (A) Mitosis of the cells is blocked；(B) The cells
• 44. In order for a cell to become cancerous, oncogenes must be ___, or tumor suppressors are ___. (A
• 45. Diploid means having__? (A) the somatic cells have all chromosomes except the sex chromosomes；(B
• 46. In a cell dividing by meiosis, DNA is replicated__? (A) between meiosis I and again before meios
• 47. In meiosis, homologous chromosomes align next to one another during__? (A) prophase I；(B) propha
• 48. If the heterozygous phenotype is intermediate between those of the two different homozygotes, th
• 49. Linked genes, by definition, are genes that__? (A) have no alleles；(B) have more alleles than us
• 50. A single chromosome has__? (A) a single gene with multiple alleles；(B) a single gene with a sing
• 51. The method used to produce the cloned sheep, Dolly, was__? (A) embryonic stem cell transplantati
• 52. Darwin concluded from his observations of nature and readings that__? (A) population growth is u
• 53. Natural selection acts on__? (A) genotypes；(B) populations；(C) individuals；(D) communities.
• 54. If similarities between two structures in different organisms reflect independent evolution, the
• 55. The observation that most aquatic vertebrates (e.g. fish, penguins, and whales) have streamlined