Describe each statement as either True (A) or False (B) 32. The first organelle

Question

Describe each statement as either True (A) or False (B) 32. The first organelle obtained in the evolution of the eukaryotic cell by endosymbiosis was the chloroplast. 33. The first photosynthesizers were prokaryotic. 34. Most eukaryotes are protists. 35. Sex is simply another word for genetic recombination between individuals 36. RNA could have been the first biological catalyst 37. Plasmodial slime molds are more closely related to plants than to animals 38. Sex arose in prokaryotes 39. Lateral gene transfer is more common in eukaryotes than prokaryotes 40. Mitosis evolved from the process of Meiosis 41. Multicellularity evolved only once 42. Genetic conflict promotes the evolution of multicellularity 43. A Phylogeny is the evolutionary history of relationships among organisms or their genes 44. Eukaryotes are the primary biotic contributors to nutrient cycles on the planet. 45. The Bacteria are more closely related to the Eukaryotes than the Archea 46. Multicellularity requires chemical communication between cells 47. Mark question number 100 on your scantron as A to have your exam graded correctly

Explanation / Answer

Answer

32 .FALSE - The endosymbiotic event that generated mitochondria must have happened early in the history of eukaryotes, because all eukaryotes have them.

33. TRUE - cyanobacteria thrived, turning sunlight into sugar and excreting oxygen as waste.

34. TRUE - Most of the organism are unicellular that comes under protist .

35. TRUE -  the essence of sex is genetic recombination

36. TRUE -  RNA could act as a catalyst.

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