Which term describes an organism that has only one type of sex chromosome and produces one type of gamete?

The term that describes an organism with only one type of sex chromosome that produces one type of gamete is "homogametic." In biological terms, homogametic organisms possess two identical sex chromosomes. As a result, they generate uniform gametes in terms of sex chromosomes, leading to the production of only one type of gamete.

For example, in mammals, females are typically homogametic, possessing two X chromosomes. Therefore, when females produce eggs, all of those eggs will carry an X chromosome because they cannot produce gametes with a different chromosome. This contrasts with heterogametic organisms, which have two different sex chromosomes and produce two types of gametes. Understanding these definitions is crucial in genetics, especially when analyzing inheritance patterns relating to sex-linked traits. The other terms, such as monoecious and dioecious, refer to the presence of both male and female reproductive structures or organisms that are strictly male or female, respectively, rather than the chromosomal composition or type of gametes produced.