Which of the following does NOT belong in DNA?
A. nucleotides
B. ribose
C. thymine
D. phosphate
B. ribose
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The feature of carbon important for producing a diversity of organic molecules is
A. carbon can form up to 2 covalent bonds with other elements. B. carbon bonds are stronger than any other bond. C. carbon can form both polar and nonpolar covalent bonds with various elements. D. carbon bonds cannot be broken in the range of temperatures associated with life. E. carbon can form hydrogen bonds with water.
Which hormone prevents menstruation in a pregnant woman?
a. follicle stimulating hormone b. lutenizing hormone c. estrogens d. human chorionic gonadotropin e. testosterone
what is the mechanism of clonal de-selection (deletion) called?
What will be an ideal response?
As you're sitting in your chair reading this test question, the process of breathing out (termed exhalation) is an active process
Indicate whether the statement is true or false