When someone has two Y chromosomes they develop a condition called Jacob's syndrome. In most cases, this condition, which affects men, does not significantly alter a man's way of life, although there are some associated ... More »

A human cell containing 22 autosomes and either an X or Y chromosome is a sperm cell. According to Genetics Home Reference, all female egg cells contain an X chromosome along with their 22 autosomes. This arrangement mea... More »

Human sperm cells, also called spermatozoon, contain 22 autosomes, a single Y chromosome, and a single X chromosome. Female egg cells contain 22 autosomes and two X chromosomes. More »

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When someone is born with both male and female organs, the condition is called ambiguous genitalia, according to MedlinePlus. It has several different forms, and each one has a specific set of characteristics that sets i... More »

Hitchhiker’s Thumb is inherited during meiosis, a process during sexual reproduction where chromosomes are randomly distributed between cells, according to the Regional Professional Development Program (RPDP). During thi... More »

The diaphragm adopts a curved shape when it is relaxed, and when someone inhales it flattens and allows the lungs to expand. During expiration it gradually curves again, allowing for expiration. More »

To wake someone from a deep sleep, gently walk into her bedroom, move closer to the bed, and uncover her slowly. Call the person with a low voice, and raise your tone as you continue calling while simultaneously shaking ... More »