In a DNA double helix an adenine of one strand always pairs with a(n) _____ of the complementary strand, and a guanine of one strand always pairs with a(n) _____ of the complementary strand.
Fill in the blank(s) with the appropriate word(s).
Answer: Thymine
Cytosine
Biology & Microbiology
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a. an amacrine cell.
b. a bipolar cell.
c. a ganglion cell.
d. a cone.
e. a horizontal cell.
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________ are membrane proteins that help cells to stick to each other
Fill in the blank(s) with correct word
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Ricin is a potential chemical warfare agent that kills by disabling the ribosomes. With ricin poisoning, a cell would no longer be able to make ________
Fill in the blank(s) with correct word
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True or False: Food spoilage is NOT always caused by microorganisms
a. TRUE b. FALSE
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