Which of the following is not considered a type of structure that may sustain epigenetic effects?
a. a protein aggregate that controls the conformation of new subunits as they are synthesized
b. a proteinaceous structure attached to DNA
c. a chromosome rearrangement, such as an inversion
d. covalent modification of DNA, such as methylation
e. All of the above may sustain epigenetic effects.
Ans: c
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The primary function of cellular membranes is ____
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Some animal species found in caves have tiny, nonfunctional eyes. These are best described as
A) mutations. B) analogous structures. C) homologous structures. D) vestigial structures.
None of the nocardioform actinomycetes are pathogenic to humans.
Answer the following statement true (T) or false (F)