Where would you most likely find an integral membrane protein?

A) on the inside surface of the cell membrane
B) on the outside surface of the cell membrane
C) floating freely in the cytoplasm
D) spanning the cell membrane, with parts of the protein visible from both the inside and the outside of the cell


Answer: D

Biology & Microbiology

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Sister chromatids of replicated chromosomes are separated during ________________

A. mitosis B. meiosis I and mitosis C. meiosis II and mitosis D. meiosis I E. meiosis II

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Ig stands for __________. Fill in the blank(s) with the appropriate word(s)

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Which of the following would not be found in RNA?

A. Guanine B. Cytosine C. Thymine D. Uracil E. Adenine

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How many protein-encoding genes constitute the human genome?

A. 46 B. about 25,000 C. more than 1 million D. 500,000

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