Nitric oxide has what effect on systemic arterioles?
A) vasoconstriction and vasospasm
B) vasospasm
C) vasoconstriction
D) neither vasodilation or vasoconstriction, but may cause vasospasm
E) vasodilation
Ans: E) vasodilation
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The total protein content of the cell is called the ________.
Fill in the blank(s) with the appropriate word(s).
Which of the following is true of embryo cloning?
a. It occurs all the time in nature. b. It involves the genetic contribution of only one parent. c. It produces identical offspring. d. “Artificial twinning” is a laboratory application of the process. e. All of these are true.
Two genes, A and B, are located 30 map units apart. The dihybrid shown in the attachment is mated to a tester aa bb. What proportion of the offspring is expected to be dominant for both traits?
A. 0% B. 15% C. 30% D. 35% E. 70%
Give a reason why DNA makes a better material than RNA for the storage of genetic information, and explain your answer
What will be an ideal response?