The type of reproductive isolation in which offspring are infertile because their chromosomes cannot align correctly during meiosis because of a different number of chromosomes being inherited from the two parents is:

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This phenomenon is known as "chromosomal incompatibility," and it often occurs when two different species attempt to mate and produce offspring. The offspring inherits a different number of chromosomes from each parent, which makes it difficult for them to pair up properly during meiosis and form viable gametes. This leads to infertility in the hybrid offspring, which is a form of reproductive isolation known as hybrid infertility.

The Type of Reproductive Isolation in Which Offspring Are Infertile