Choose the correct options Q1. Prokaryotes are now divided into the (a) photosynthetic bacteria and chemosynthetic bacteria. (b) archaea and cyanobacteria. (c) bacteria and cyanobacteria. (d) autotrophs and heterotrophs. (e) archaea and bacteria. 2. Which piece of evidence best supports the endosymbiotic theory of organelle evolution? (a) Mitochondria and chloroplast are much larger than present day bacteria. (b) The inner membrane of a mitochondrion and chloroplast resemble a eukaryotic cell while the outer membrane resembles that of a bacterial cell. (c) Both mitochondria and chloroplast divide by Mitosis. (d)The outer membrane of a mitochondrion and chloroplast resemble a eukaryotic cell while the inner membrane resembles that of a bacterial cell. 3. Which of these conditions is NOT among the requirements of the Hardy-Weinberg equilibrium of allele frequencies in a population? (a) small population with genetic drift (b) no net mutations (c) no net migration of alleles into or out of the population (d) random mating population (e) no selection of one genotype over another
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Select all correct answers. Mitochondria A. contain DNA. B. contain ribosomes and synthesize proteins. C. are surrounded by a single phospholipid bilayer. D. divide by binary fission. QUESTION 2 According to the endosymbiosis theory, the ancestor of the mitochondria currently found in eukaryotes was A. a protist B. a fungus C. a cyanobacterium D. an α-proteobacterium QUESTION 3 The evolution of the nuclear envelope made it possible for cells to A. separate transcription and translation B. reproduce sexually instead of asexually C. exchange DNA with other organisms by horizontal gene transfer D. all of these QUESTION 4 The first eukaryotic cells were likely able to move using A. pseudopodia B. a flagellum C. cilia D. mitochondria QUESTION 5 Select all correct answers. Which of the following morphological features are found in ALL eukaryotes? A. A cell wall B. A cytoskeleton C. A nucleus and endomembrane system D. Mitochondria or genes normally found in mitochondria E. Multicellularity F. Chloroplasts or genes normally found in chloroplasts QUESTION 6 Select all correct answers. Circular chromosomes are found in A. the nucleus of eukaryotic cells B. mitochondria C. prokaryotic cells D. chloroplasts QUESTION 7 Select all correct answers. Circular chromosomes are found in A. mitochondria B. prokaryotic cells C. the nucleus of eukaryotic cells D. chloroplasts
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Match the plant and bacterial organelles/structures to their jobs/functions. A. cell wall B. central vacuole C. chloroplast D. pili A. support and protection B. holds water that presses on outer cell to keep cell plump and stores nutrients, wastes, and helps maintain pH C. contains pigments and enzymes that make sugar from water and carbon dioxide using light energy (photosynthesis) D. anchor/stick cell to surfaces and can be used to transfer DNA from one cell to another for reproduction Which of the following is FALSE about cells? A. Cells are the smallest LIVING thing. B. Cells are made of organelles. C. The endosymbiotic theory states that mitochondria and chloroplasts used to be free-living bacteria that moved into a eukaryotic cell and because they both benefited, the bacteria evolved into organelles instead of bacteria. D. Most cells in a human are constantly moving around the body and they usually live as long as the human they are in. E. One cell can be an entire organism.
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Read the given statements and select the correct option. Statement $1:$ Chloroplast and mitochondria are semiautonomous bodies. Statement 2 : Chloroplast and mitochondria have their own DNA and protein synthesizing machinery. (a) Both statements 1 and 2 are correct and statement 2 is the correct explanation of statement 1 . (b) Both statements 1 and 2 are correct but statement 2 is not the correct explanation of statement 1 (c) Statement 1 is correct and statement 2 is incorrect. (d) Both statements 1 and 2 are incorrect.
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