The building blocks of DNA are
A. genes.
B. chromosomes.
C. nucleotides.
D. amino acids.
E. double helices.
Answer: C
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Which one of the following biological polymers is defined by a physical property rather than a chemical structure?
A. proteins B. lipids C. monosaccharides D. nucleic acids E. polysaccharides
The pressure of blood leaving the right ventricle is ______ than the pressure of blood leaving the left ventricle.
A. greater B. less C. not different
How does the telomerase attach to the telomere area on the chromosome?
a. It is assisted by specialized helper enzymes. b. It has a built-in RNA template that binds to the end of the telomere. c. Telomerase cannot bind to the telomere. d. Primase builds an RNA primer to assist in binding telomerase to the telomere.
Which of the following statements is NOT
correct about autosomes?
a. Autosomes are chromosomes that are found in both males and females. b. In a human cell, all chromosomes are autosomes, except chromosomes "X" and "Y." c. In birds, moths, and butterflies, autosomes determine the sex of the individual. d. A characteristic carried by autosomes would be passed to offspring males and females. e. More than one of these statements is incorrect.