Which one of the following statements about the denaturation of nucleic acids is true?
A. Increasing the temperature will allow the DNA to renature.
B. Returning the pH to 7 will allow the DNA to denature.
C. Reducing the temperature will often allow a denatured DNA to renature.
D. Increasing pH allows annealing of RNA strands.
E. Since RNA is only partially double-stranded it is unaffected by changes in pH and temperature.
C
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A cytoplasm is composed of: a. cytosol and a cell wall
b. a cell wall and organelles. c. cytosol and organelles. d. organelles and a cell wall.
The continents were once joined in one interconnected landmass called Pangaea, but moved slowly into their current positions. The process by which the continental (tectonic) plates moved slowly over time is called ________
Fill in the blank(s) with correct word
Independent assortment of homologous chromosomes occurs at
A. anaphase I. B. anaphase II. C. metaphase I. D. interphase. E. prophase I.
Considering organisms from the species level to the phylum level there is an increase in
A. unity. B. diversity C. structural similarity. D. color similarity.