During the isolation of somaclonal variants such as cell selection contain positive selection, describe by which method that the wild type cell are killed by selection agent while the variant cells remain alive?

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#Question id: 342

#Unit 1. Molecules and their Interaction Relevant to Biology

In a single molecule of water, two hydrogen atoms are bonded to a single oxygen atom by ________.

TLS Online TPP Program

#Question id: 343

#Unit 1. Molecules and their Interaction Relevant to Biology

Assume that acid rain has lowered the pH of a particular lake to pH 5.0. What is the hydroxide ion concentration of this lake?

TLS Online TPP Program

#Question id: 344

#Unit 1. Molecules and their Interaction Relevant to Biology

The partial negative charge at one end of a water molecule is attracted to the partial positive charge of another water molecule. What is this attraction called?

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#Question id: 345

#Unit 1. Molecules and their Interaction Relevant to Biology

As the [H₃O⁺] of the solution decreases, the [OH-] ________.

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#Question id: 346

#Unit 1. Molecules and their Interaction Relevant to Biology

The partial negative charge in a molecule of water occurs because ________.

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#Question id: 348

#Unit 1. Molecules and their Interaction Relevant to Biology

Sulfur is in the same column of the periodic table as oxygen, but has electronegativity similar to carbon. Compared to water molecules, molecules of H2S will ________.