Which of the following is an example of reproductive cloning?
A. Bringing our favorite dog Buster back to life by producing a puppy with the exact same DNA
B. Producing new skin cells from an individual's DNA to aid in skin grafts after a severe burn
C. replicating the insulin gene for the production of transgenic bacteria
D. All of the above
Answer: A. Bringing our favorite dog Buster back to life by producing a puppy with the exact same DNA
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Membrane-like structures form when proteins or lipids are mixed with water. They serve as a model for __________,
which may have preceded cells. Fill in the blank(s) with the appropriate word(s).
In the carbon cycle, ______ from the atmosphere is used in photosynthesis to synthesize carbon-containing organic molecules in a process called ______.
A. carbon dioxide; combustion B. carbon dioxide; carbon fixation C. hydrocarbons; oxidation D. hydrocarbons; cellular respiration
Which of the following is the proper sequence for mitosis? I. Metaphase II. Telophase III. Prophase IV. Anaphase
A. I, III, IV, II B. I, II, III, IV C. III, I, IV, II D. IV, I, III, II E. III, IV, I, II
In horses, black coat color is influenced by the dominant allele (B), and chestnut coat color by the recessive allele (b). Trotting gait is due to a dominant gene (T), pacing gait to the recessive allele (t). Give the phenotype and genotype of the horse you would use in a testcross to determine the genotype of a black trotter.
A. Black pacer, BB tt B. Black trotter, BB TT C. Chestnut trotter, Bb Tt D. Chestnut pacer, bb tt E. Chestnut pacer, Bb tt