Small circular molecules of "extra" DNA in
bacteria
a. are plasmids.
b. are DNA fragments from their main
chromosome.
c. result from the activity of restriction
enzymes.
d. are eventually degraded.
e. are none of these
A
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An explanation supported by a large body of observations and experimentation is referred to as a(n):
A. prediction. B. theory. C. hypothesis. D. supposition. E. investigation.
An endergonic reaction is a reaction that
A. requires an input of energy. B. typically builds complex molecules from smaller molecules. C. releases energy to its surroundings. D. Both releases energy to its surroundings and typically builds complex molecules from smaller molecules are correct. E. Both requires an input of energy and typically builds complex molecules from smaller molecules are correct.
What explains why even close relatives have a varied mix of genetic traits?
a. heterozygous b. allele variation c. co-dominance d. independent assortment e. continuous variation
A monomer is covalently joined to a growing polymer chain by
A. a condensation reaction B. removal of an H and an OH from the monomer and the polymer being joined, resulting in formation of a water molecule and the formation of a covalent bond between the monomer and the growing polymer chain C. all of these answers are correct D. a dehydration reaction