The Golgi body is responsible for ________ .
a. building new polypeptide chains
b. building new lipids
c. processing new lipids and polypeptide chains into their final form
d. holding lysosomes and peroxidases
e. holding digestive enzymes
Ans: c. processing new lipids and polypeptide chains into their final form
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All CpG sites located near the promoter region of protein coding genes are methylated
A. true B. false
Fossils of plants found in deeper geologic layers do not show vascular tissues, while fossils in shallower geologic layers include some specimens with and some without vascular tissues. Thus, vascular tissue in plants is considered a ____ character.
a. ancestral b. homoplasious c. primitive d. derived e. physiologically essential
Nucleic acid blotting is commonly used in molecular biology. Two types, Southern blots and Northern blots, involve gel electrophoresis and a filter, which holds the nucleic acid
Briefly describe the procedure of "blotting" in this context and differentiate between Southern and Northern blots.
What are examples of cells that support neurons both structurally and functionally?
A. Schwann cells, oligodendrocytes, and other neuroglia B. Dendrites, nodes of Ranvier, and neuroglia C. Dendrites and nodes of Ranvier D. Neuroglia and nodes of Ranvier E. Schwann cells and dendrites