Radiolarians have characteristic ____, which are thin, ray-like strands of cytoplasm supported
internally by bundles of ____.
a. axopods; microfilaments
b. axopods; microtubules
c. spicules; microfilaments
d. spicules; microtubules
e. microfilaments; axopods
B
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The ATP molecule contains ______________
A. glucose B. glutamic acid C. 3 phosphate group D. ribose E. deoxyribose
Broad scale regions dominated by similar types of ecosystems are called
A) communities. B) biospheres. C) biomes. D) landscapes.
Which of the following is NOT an example of epigenetics?
A. paramutation B. X inactivation C. miRNAs D. genomic imprinting E. independent assortment of alleles
How do restriction enzymes cut DNA sequences?
a. They cut DNA at sequences that have lots of adenine bases. b. They have the ability to cut DNA randomly. c. They cut DNA at sites, called recognition sites, that have specific nucleotide sequences.