Modification of the tissue culture conditions by the inclusion of ________ during transformation of grape, rice, corn, or soybean has been found to increase the transformation frequencies of those plant cells.

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#Question id: 2653

#Unit 2. Cellular Organization

The sequence of the structural genes in the lac operon is

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#Question id: 51

#Unit 1. Molecules and their Interaction Relevant to Biology

 If the equilibrium constant, Keq, for the reaction ATP → ADP + Pi is 2.22 × 10⁵ M, calculate the standard free-energy change, ΔG°, for the synthesis of ATP from ADP and Pi at 25 °C.

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#Question id: 14481

#Unit 13. Methods in Biology

A card is drawn from an ordinary pack of playing cards and a person bets that it is a spade or an ace. Then the odds against his winning this bet is

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#Question id: 1405

#Unit 4. Cell Communication and Cell Signaling

A gain-of-function mutation in which of the following would have the same effect as a gain-of-function mutation in Ras?

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#Question id: 5550

#Unit 5. Developmental Biology

The vertebrate nervous system is derived from