Testosterone is an example of a chemical signal that affects the very cells that synthesize it, the neighboring cells in the testis, along with distant cells outside the gonads. Thus, testosterone is an example of ________.

 I) an autocrine signal

 II) a paracrine signal

 III) an endocrine signal

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#Question id: 2693

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Which of the following will form a palindromic sequence?

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#Question id: 2694

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Which of the following is affected by palindromic sequences?

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#Question id: 2695

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Which of the following palindromes is not a restriction site?

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#Question id: 2696

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Inverted repeat have a number of biological functions. Which of the following is a biological function of an inverted repeat?

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#Question id: 2697

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Which of the following is an example of an inverted repeat?

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#Question id: 2698

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Most commonly known hairpin structures are found in _____________