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A boy with chromosome 13q deletion syndrome developed eye cancer, a woman with breast cancer lost vision due to a rare side-effect of her treatment, a man's vision worsened after using a hair loss drug, and two rare disorders were discussed. Optical Coherence Tomography is useful for diagnosing and monitoring these conditions.

Certain genetic markers on the Y-chromosome may influence prostate cancer risk in Iraqi males.

Acute leukemias with the Philadelphia chromosome may be biphenotypic, and identifying this is important for proper treatment.

A mutation in mice causes hair loss and skin issues due to a defect in a gene affecting cell adhesion.

Most mouse hair keratin genes are on chromosomes 11 and 15.

The harlequin ichthyosis mouse mutation causes thick skin and early death, resembling a human skin disorder.

Pachyonychia congenita is linked to a keratin gene on chromosome 17.

Humans have ancient DNA from Neanderthals and other lineages in their chromosomes, affecting traits and evolution.

Long-term finasteride use may affect sperm structure and chromosomes.

Females are more prone to lupus and arthritis due to X chromosome factors.

A 36-year-old person with a female appearance but male chromosomes was diagnosed with a rare enzyme deficiency affecting sexual development.

Alopecia universalis may be linked to Down syndrome due to genes on chromosome 21.

A woman with acromegaloidism and normal growth hormone levels had a rare X-Tetrasomy, suggesting a need to study X-chromosome genes for their role in growth and facial development.

Keratosis Follicularis Spinulosa Decalvans is a rare genetic disorder causing skin and hair issues, often inherited through the X chromosome.

A boy with a new NR5A1 gene mutation has a sex development disorder without affecting his adrenal glands.

The Dfl mutation in mice causes poor sebaceous gland function and complete hair loss.

Certain genetic markers may increase or decrease prostate cancer risk.

Male-to-female skin grafts in mice are rejected due to sex-linked antigens.

Repetin is a protein involved in skin and hair development, binding calcium and compensating for other proteins when needed.

Birt–Hogg–Dubé Syndrome requires genetic testing for accurate diagnosis due to its similarities with tuberous sclerosis.

Female cuckoo color differences are linked to their unique genes and help avoid male harassment.

A 195 bp duplication in the HOXC10 gene causes crests in domestic chickens.

KRTAP10 proteins help form the hair shaft's tough outer layer by interacting with specific hair keratins.

Certain DNA regions in alpacas are linked to fiber diameter.

Both genetic and hormonal factors are crucial for bird sex differentiation, and disturbances can cause sex reversal.

The Bsk mutation doesn't involve keratin gene recombination and its cause is unknown.

Robertsonian translocation can cause recurrent miscarriages.

Researchers found genes that may explain why some pigs grow winter hair, which could help breed cold-resistant pigs.

Certain genetic markers linked to wool quality in Rambouillet sheep were identified, which can guide better breeding choices.

Certain genetic markers can help predict wool production in U.S. sheep.