Roughly what percentage of human DNA is noncoding DNA?
a) 25%
b) 60%
c) 2%
d) 98%
d) 98%
You might also like to view...
When one or more presynaptic neurons fire in rapid order it produces a much greater depolarization of the postsynaptic membrane than would result from a single EPSP; this event is called ________ summation
Fill in the blanks with correct word
The lateral, medial, and posterior cords of the brachial plexus are named with respect to the location of the ________.
Fill in the blank(s) with the appropriate word(s).
Which chemical factors in blood or cerebrospinal fluid stimulate the respiratory centers?
A) Ca2+, Na+, and K+ concentrations B) Cl-, Na+, and K+ concentrations C) pH, PO2, and PCO2 concentrations D) PO2, glucose, and lactate concentrations E) hematocrit, glucose, PO2, and PCO2 concentrations
Infant respiratory distress syndrome (IRDS) is caused by ________
A) production of very thick respiratory mucus B) overinflated alveoli C) underdeveloped respiratory epithelium D) pulmonary edema E) deficiency of pulmonary surfactant