Thymine is replaced by which nitrogen base in RNA?
A) ribose
B) uracil
C) guanine
D) thymine is not replaced in RNA
E) cytosine
B
You might also like to view...
Which of the following statements is true of metaphase I of meiosis I?
A) Joined homologous pair uniformly line up on the equatorial spindle with chromosome one at the top and chromosome 23 on the bottom. B) Tetrads align randomly on the spindle equator with all the maternal homologs on one side and all the paternal homologs on the opposite side. C) Homologous pairs align randomly on the spindle equator with a mix of paternal and maternal homologs destined for each of the daughter cells. D) The sister chromatids line up randomly on the spindle equator with some maternal and paternal chromatids on both sides of the equator.
A mammary gland adenoma is malignant
Indicate whether the statement is true or false
Parasympathetic ________ axons are longer than their counterparts in the sympathetic division.
Fill in the blank(s) with the appropriate word(s).
Which of these happens first in an adrenergic synaptic transmission?
A. ATP is converted to cyclic AMP B. G protein binds to adenylate cyclase C. Adenylate cyclase is activated D. Cyclic AMP induces several effects in the cell E. G protein dissociates from the NE receptor