The nucleus is bound by two layers of membrane called the nuclear envelope.
a. true
b. false
Ans: a. true
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When two genes are on the same chromosome, they are considered linked
Indicate whether the statement is true or false
How many lobes does the thyroid gland have?
a. 1 b. 2 c. 3 d. 4 e. 5
A healthy individual, weighing 60 kg, is infused with 1 L of isotonic saline to which 20 mEq of K+ has been added. Following the infusion, the plasma [K+] of this individual has increased from 3.5 mEq/L to 7.8 mEq/L
What is the most likely explanation for the development of hyperkalemia in this individual? A. shift of K+ from the ICF into the ECF B. impaired renal excretion of K+ C. the increase in plasma [K+] of 4.3 mEq/L is what is expected from the addition of 20 mEq/L of K+ to the ECF D. contraction of the ECF volume E. development of hyperosmolality
Which of the following events occurs during anaphase?
A. The nuclear envelope degenerates. B. Chromosomes migrate to opposite poles of the cell. C. Chromatin strands condense to form chromosomes. D. Cytokinesis completes. E. Spindle fibers are formed.