2 papers analyzed
These studies suggest that embryos do not all start out as female, as sex chromosome patterns influence embryo progression.
The question of whether all embryos start out as female is a topic of interest in developmental biology. This inquiry delves into the early stages of embryonic development and the influence of genetic and chromosomal factors on the differentiation of sex.
Early Developmental Timings and Sex Differences:
Influence of Male and Female Contributions:
The research indicates that there are observable differences in the early developmental stages of male and female embryos, with female embryos generally progressing faster in certain stages. However, the notion that all embryos start out as female is not supported by the data. Instead, both male and female contributions play roles in early embryonic development, with specific timings and rates differing between the sexes.
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