Which glial cell protects the CNS from chemicals and hormones circulating in the blood?
A) ependymal cells
B) satellite cells
C) microglia
D) astrocytes
E) oligodendrocytes
Answer: D
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The inner lining of the heart is the
A) epicardium. B) myocardium. C) pericardium. D) endocardium.
Different alleles of the same gene are said to be
A) recessive. B) dominant. C) heterozygous. D) homozygous.
An obstruction in one of the coronary arteries would compromise the ability of the myocardial cells to undergo cellular respiration.
Answer the following statement true (T) or false (F)
Which statement about DNA replication is FALSE?
A)DNA ligase adds nucleotides to the lagging strand. B)The two strands of original or parental DNA are separated during DNA replication. C)DNA polymerase III builds a new strand by adding DNA nucleotides one at a time. D)Because the two strands of original or parental DNA run in opposite directions, the new strands must be made in different ways.