Pokemon Black Version 2

If I breed two of the same pokemon, male and female, and both know hydro pump, will the offspring also know hydro pump?

If the offspring learns Hydro Pump at some point, yes.
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If you look at the moveset for the offspring pokemon, and hydro pump is in the "egg move" list, or it can learn that move by leveling up or TM, then yes.
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HG FC: 1979 7951 4916
W2 FC: 5115 2466 3250

Egg moves come from the father, fyi. Moves the mother currently knows are meaningless when breeding.
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Maybe I'll use you, to blow a midget's head off, or maybe I won't. - zer0

Metalgenesis posted...

Egg moves come from the father, fyi. Moves the mother currently knows are meaningless when breeding.

Stupid answer, if you read previous post you'll find that in some cases mother's move matter.
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The moves obtained by a Pokémon when hatching are as follows:

The Pokémon will start with any moves that it would learn as a "Start" move in its learnset (In Generation II and Generation III, they learned all moves that are level 5 and below in their learnset.).
The Pokémon will start with any moves that it would learn by leveling up only if both parents know the move. This does not apply to moves that later evolutions can learn (such as Breloom's Mach Punch, which Shroomish cannot learn for obvious reasons).
The Pokémon will start with any TM or HM moves (and in Crystal, Move Tutor moves) that the father knows and the baby can also learn by machine.
The Pokémon will start with any Egg moves that the baby can learn and the father knows.
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