Heparin prevents blood clotting by
A) interfering with the formation of thrombin and fibrinogen.
B) depleting the blood of platelets.
C) inhibiting the formation of prothrombin activator and the action of thrombin on
fibrinogen.
D) binding to calcium ions.
C
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The presence of sex chromatin in a smear of epithelial cells indicates that the donor of the cells is a genetic female.
Answer the following statement true (T) or false (F)
Another term for menisci is
a) articular fat pads. b) articular discs. c) articular spaces. d) capsular fat pads. e) capsular discs.
Menopause is preceded by a period of progressive ovarian failure characterized by increasingly irregular cycles and dwindling estrogen levels
a. True b. False Indicate whether the statement is true or false
Which of the following are alternate ways to introduce DNA into a cell (other than viruses)?
A. Direct insertion of the gene into the cell B. Attachment of the gene to receptors on the cell membrane C. Attachment of the gene to a liposome D. All apply.