Which of the following proteins forms channels that permit electrical communication between cells across gap junctions?

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#Question id: 31283

#Unit 5. Developmental Biology

Egg activation in Drosophila is accomplished: 

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#Question id: 12932

#Unit 13. Methods in Biology

Why mRNA cannot be used directly in cloning?

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#Question id: 10566

#Unit 6. System Physiology – Plant

What happens if this cell is placed in the beaker containing 0.1 M sucrose, Because the water potential of the sucrose solution (Yw = –0.244) is greater than the water potential of the cell (Yw = –0.732 MPa)

a) Water will move from the cell to the sucrose solution

b) From high to low water potential

c) From low to high water potential

d) Water will move from the sucrose solution to the cell

Which of the following statement is CORRECT?

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#Question id: 10799

#Unit 6. System Physiology – Plant

Arabidopsis thaliana mutants that lack the enzyme chalcone synthase____

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#Question id: 26453

#Unit 3. Fundamental Processes

Some of the sigma subunit of E. coli and function is given, Choose which of the following is incorrectly matched