Of the different sources of genetic variability, which one could be defined as permanent, transmissible changes to the DNA coding sequence often caused by outside environmental factors?
A) independent assortment
B) crossing over
C) random fertilization
D) mutation
Ans: D) mutation
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The subscapular fossa is a depression on the anterior surface of the scapula.
Answer the following statement true (T) or false (F)
A male patient complains of physical weakness and fatigue. A blood test shows his hematocrit to be 30%. Which of the following diagnoses is the least likely to explain his symptoms?
A. Dietary iron deficiency B. Dietary vitamin B12 deficiency C. Internal bleeding D. Kidney disease E. Lung disease
The two hormones primarily involved in fluid balance that are also potent vasoconstrictors are ____________________ and ____________________
Fill in the blank(s) with correct word
The sarcoplasmic reticulum is another name for
a. the smooth endoplasmic reticulum of muscle cells. b. the rough endoplasmic reticulum of muscle cells. c. the secretory complex of muscle cells. d. the endocytic pathway of muscle cells. e. none of these.