Which statement correctly describes the gametes produced by a heterogametic sex?

The correct statement is that the heterogametic sex produces two different types of gametes. In many species, including humans, the heterogametic sex is typically the male, which possesses two different sex chromosomes (XY). This results in the production of two distinct types of gametes: one containing the X chromosome and the other containing the Y chromosome. This differentiation in gamete production is critical for sexual reproduction, as it contributes to genetic diversity and the determination of the sex of offspring.

In contrast, the homogametic sex, such as females in many organisms, produces gametes that are all the same type in terms of their sex chromosomes (XX in humans). Thus, the concept of the heterogametic sex specifically refers to its ability to generate varied gametes, a vital aspect of genetic inheritance and variation in sexually reproducing populations.