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LABEL THE DIAGRAM:  Below is a normal ECG tracing.  Label each circled area with the appropriate wave/complex and match the mechanical event that best describes that wave/complex.   EKG Image

Your goal is to optimize a tissue culture protocol for the production of embryogenic calli with high plant regeneration potential from a new potential biofuel crop: A. (8) List 4 factors beside culture medium components and aseptic conditions which will likely determine the tissue culture response. B. (2) Explain what is totipoteny in tissue culture. C. (2)  How do you to direct the culture response to undifferentiated (callus) or differentiated (plant regeneration) growth. D. (4) Describe two approaches/types of treatments that can minimize the occurrence of genetic variation in tissue culture?  E. (12) Describe 8 steps/treatments that prevent contaminations in tissue cultures.

What is the normal systolic and diastolic pressures in the pulmonary system?

The __________ is considered the “backup pacemaker” with a firing rate of 40 to 60 times/min:

After a genome editing tool has created a DNA double strand break in the coding sequence of a specific gene (e.g. lignin biosynthetic gene) in the plant genome the cell needs to repair this break. Describe two different repair outcomes and the consequences for the expression and function of this specific gene. 

A central venous pressure catheter (CVP) is inserted into a patient in the ICU. This will allow the respiratory care practitioner to directly monitor which of the following?

In the upright lung of a normal healthy adult, which zone is considered the most gravity dependent?

During ventricular diastole:

What portion of the ECG tracing represents atrial depolarization?

Below is terminology referring to the heart. Match the item with correct definition.