A nucleic acid contains uracil, allowing you to conclude that:
A. this nucleic acid is DNA.
B. this nucleic acid is RNA.
C. this nucleic acid could be either DNA or RNA.
B. this nucleic acid is RNA.
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Each DNA double helix has a backbone that consists of alternating ____
a. covalent and ionic bonds b. nitrogen-containing bases c. hydrogen bonds d. sugar and phosphate molecules e. covalent and hydrogen bonds
In addition to support of soft tissue, what are the other five functions of the skeletal system?
What will be an ideal response?
Looking at the information in the table above, if the A allele results in normal pigmentation and the a allele in albinism, what fraction of offspring would you expect to show albinism?
a) 1/4 b) 1/2 c) all of them d) 3/4 e) 2/4
The length of time a Gprotein will signal is determined by _______
(a) the activity of phosphatases that turn off Gproteins by dephosphorylating G?. (b) the activity of phosphatases that turn GTP into GDP. (c) the degradation of the Gprotein after G??separates from G??? (d) the GTPase activity of G??