What is the concentration of CO2 required for culturing animal cells?

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#Question id: 28992

#Unit 7. System Physiology – Animal

Insulin has an AB heterodimer structure with intrachain  and interchain disulfide bridges  such as___

I- One intrachain disulfide bridges (A6-A11) 

II- Two interchain disulfide bridges (A7-B7 and A20-B19)

III- two intrachain disulfide bridges (A6-A11 and A20-B19) 

IV- one interchain disulfide bridges (A7-B7 )

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#Question id: 11097

#Unit 7. System Physiology – Animal

The volume of air in the lungs following a complete exhalation of the expiratory reserve volume is

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#Question id: 1388

#Unit 4. Cell Communication and Cell Signaling

When Lucifer yellow, a small dye, is injected into a neuron of the retina, neighboring neurons become rapidly labeled. If the retina is incubated in dopamine prior to Lucifer yellow injection, only the injected neuron becomes labeled. These findings suggest which of the following?

I. Neurons of the retina communicate via gap junctions.

II. Dopamine is transferred between cells via gap junctions.

III. Dopamine decreases the permeability of gap junctions.

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#Question id: 24256

#Unit 2. Cellular Organization

The H32.H42 tetramer bound to DNA recruits

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#Question id: 5841

#Unit 8. Inheritance Biology

How are the BRCA proteins and their genes implicated in breast cancer?