Question at position 18 Sex determination is the developmental basis for what gametes an adult organism will be able to produce. Which of the following mechanisms of sex determination did we discuss in class?ChromosomalEnvironmentalGenetic

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The question asks which mechanisms of sex determination were discussed in class, and the provided answer indicates three mechanisms.
Option: Chromosomal
- Statement is correct because chromosomal sex determination is the classic mechanism where sex is determined by sex chromosomes (e.g., XX/XY systems in many mammals, ZW/ZZ in birds). The presence or absence of specific sex chromosomes guides gonadal development and, consequently, the type of gametes produced.
Option: Environmental
- This option is correct as well; environmental sex determination occurs when external factors such as temperature or social cues influence the development of gonads and ultimately the sex of the individual, seen in some reptiles and other organisms. The environment, not the chromosome or a fixed gene set, directs the outcome.
Option: Genetic
- This is correct because genetic mechanisms refer to sex determination governed by gene-level instructions or genetic pathways that drive sexual development, which can be distinct from just the chromosomal count. Examples include sex-determining genes or allelic interactions that bias development toward male or female phenotypes, even in systems that are not strictly chromosomal or environmental.
Overall, all three options describe legitimate categories of sex-determination mechanisms that can determine which gametes an adult organism can produce, and each can operate independently or in combination depending on the organism and context.

Question at position 18 Sex determination is the developmental basis for what gametes an adult organism will be able to produce. Which of the following mechanisms of sex determination did we discuss in class?ChromosomalEnvironmentalGenetic

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