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The research concluded that selection significantly shaped the genetic variation of the X chromosome, with certain regions affected by past selective events.

Vervet monkeys show physical changes like hair loss and scrotal color changes due to stress or nutrition issues.

Genetics may play a significant role in gender dysphoria.

The boy's hair and skin color differences are due to a pigmentation disorder.

Secreted inhibitors of Wnt and IGF signaling control hair and tooth development, creating species-specific patterns.

SRD5A2 gene variations affect PTSD symptoms differently in males and females.

Mouse spermatogenesis shows that stem cells can behave flexibly and move widely in open environments.

Msx2-deficient mice experience irregular hair growth and loss due to disrupted hair cycle phases.

Musk glands and skin in Chinese forest musk deer are closely related and share many genes.

Different populations have distinct hair structures related to their ancestry.

Fz3 and Fz6 can partially replace each other in tissue polarity and axon guidance.

Men are more likely to get infectious skin diseases, while women are more prone to autoimmune and pigment-related skin conditions, influenced by biological and environmental factors.

Asymmetric hair follicle differentiation causes the unique shape of kinky hair.

5α-reductase deficiency can cause ambiguous genitalia and gender dysphoria, treatable with testosterone.

Insufficient androgen action in male fetuses can cause genital development issues due to genetic mutations or environmental chemicals.

Pubic hair is thicker than axillary and scalp hair, useful for forensic identification.

Sex hormones affect brain cells differently in males and females.

New SRD5A2 variants may disrupt protein function, aiding diagnosis and treatment of related disorders.

Young and adult hamsters both respond similarly to testosterone and finasteride treatments, but young hamsters aren't good for testing the inhibitory activity of a specific enzyme.

Affected males are born with ambiguous genitalia, raised as females, but develop male traits at puberty due to enzyme deficiency.

The most different genetic segment between Africans and East Asians is the EDA2R/AR region, with two main types influenced by population changes and natural selection, and linked to baldness.

Identical twins had different symptoms because one had more cells with an extra chromosome fragment in different tissues.

Hypospadiac rats showed abnormal genital development, useful for studying human hypospadias.

Increased skin pigmentation in mice reduces bioluminescent signal accuracy.

Finasteride's two forms have different stability based on temperature and pressure.

DHT deficiency in rats reduces sperm content and affects testis structure over time.

Treatment during development affects hormone balance and sexual behavior in male rats.

Dysplastic nevi have unique gene expressions, making them distinct from common melanocytic nevi.