Muscles originate from
a. ectoderm.
b. endoderm.
c. mesoderm.
d. ectoderm and endoderm.
e. ectoderm and mesoderm.
C
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The purpose of the light reactions is to produce ____.
A. NADPH and ATP B. oxygen and glucose C. ATP and oxygen D. glucose and NADPH E. carbon dioxide and ATP
__________ are proteins that occur naturally in the
vertebrate nervous system but can cause fatal disease when they misfold. Fill in the blank(s) with the appropriate word(s).
Each of the following target bacterial ribosomes, except ________.
A. tetracycline B. polymyxins C. erythromycin D. gentamycin E. streptomycin
Watson and Crick used evidence from several studies to determine the structure of DNA. What conclusion were they able to draw from Rosalind Franklin's X-ray diffraction data, specifically?
A) DNA consists of four types of nucleotide bases: A, T, C, and G. B) DNA nucleotides form complementary base pairs. C) Adenine pairs with thymine and cytosine pairs with guanine when they are on opposite DNA strands. D) DNA is a duplex, with two strands forming a double helix. E) The DNA strands are antiparallel, and the strands are held together by hydrogen bonds.