The reproductive cells produced by flowers are of two kinds.

These may be transferred to the next generation when individual reproductive cells have been manipulated.

Then they could be implanted in the host's reproductive cells.

At peak size, reproductive cells are built with new males and queens produced.

The reproductive cell of a female organism is called an ovum, or egg.

So 15 years ago, you gave up some reproductive cells - to make money, but in the process, to let someone else conceive a child.

Worms are hermaphrodite, which means they have both male and female reproductive cells.

What they really wanted was not diplomatic relations but some living human reproductive cells.

The virus he chose would go straight to the reproductive cells in the body.

So, of course, this organism could not breed true, because its reproductive cells would be either one type or the other.