Which of the following would NOT normally be found as a component of a cell's nucleic acids?

A. adenine deoxyribonucleotides
B. thymine deoxyribonucleotides
C. uracil deoxyribonucleotides
D. cytosine ribonucleotides
E. adenine ribonucleotides


Answer: C

Biology & Microbiology

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Suppose a DNA replication error is not corrected. After two cell divisions, how many of the four daughter cells

contain this mutation (assuming that the mistake was never corrected)?

a. none

b. one c. two d. three e. four

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Choose the hormone that is NOT correctly matched with its chemical category.  

A.  polypeptides—ADH B.  steroid—estradiol C.  amine—FSH D.  glycoprotein—LH E.  steroid—testosterone

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Most species within the Kingdom Plantae are 

A. cone bearing (pine trees). B. mosses. C. ferns. D. flowering plants.

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On a statistical basis, smoking a single cigarette lowers your life expectancy by

A. 10.7 minutes. B. 35 minutes. C. 2 hours. D. 24 hours. E. 5 minutes.

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