what are some characteristics of klinefelter syndrome?
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Males who have Klinefelter syndrome may have the following symptoms: small, firm testes, a small penis, sparse pubic, armpit and facial hair, enlarged breasts (called gynecomastia), tall stature, and abnormal body proportions (long legs, short trunk).
695022
They're the two chromosomes that decide wether you turn out male or female. All men have a X and a Y chromosome: XY the Y chromosome causes male characteristics. All women have two X chromosomes: XX the XX combination allows the female characteristics to develop. You just studied 4 terms!
892899
There are over many conditions that fall under the intersex umbrella including, but not limited to: Androgen Insensitivity Syndrome (AIS), Congenital Adrenal Hyperplasia, Klinefelter Syndrome, Hypospadias, Mayer-Rokitansky-Küster-Hauser Syndrome (MRKH), Swyer Syndrome, Turner Syndrome, 5-Alpha Reductase Deficiency.
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['Body hair. You may notice abnormalities in body hair, like the growth of more hair than is typical for you on your face, chest, and back (hirsutism). ... ', 'More muscle. You may notice that you have an increase in muscle mass throughout your body.', 'Irregular periods. ... ', 'Sexual health. ... ', 'Mood.']
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['Infertility. Estrogen is one of the hormones your body uses to produce sperm. ... ', 'Gynecomastia. Increased estrogen can cause more breast tissue to develop than normal. ... ', 'Erectile dysfunction (ED). ... ', 'Slowed growth. ... ', 'Epiphyseal closure.']
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Klinefelter's syndrome, XXY males, can occur due to nondisjunction of X chromosomes during prophase of meiosis I in females. One of the eggs from such a meiosis could receive both X chromosomes, and the other would receive no X chromosomes.
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47,XYY syndrome is associated with an increased risk of learning disabilities and delayed development of speech and language skills. Affected boys can have delayed development of motor skills (such as sitting and walking) or weak muscle tone (hypotonia).
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['Ear abnormalities.', 'Unusually shaped eyes.', 'Different colored eyes.', 'Facial features that are unusual or different from other family members.', 'Brittle or sparse hair.', 'Excessive body hair.', 'White patches of hair.', 'Large or small tongue.']
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['Abnormal Body Posturing or Facial Expressions.', 'Abnormal Tone of Voice.', 'Avoidance of Eye Contact or Poor Eye Contact.', 'Behavioral Disturbances.', 'Deficits in Language Comprehension.', 'Delay in Learning to Speak.', 'Flat or Monotonous Speech.', 'Inappropriate Social Interaction.']
255402
Some common physical features of Down syndrome include: A flattened face, especially the bridge of the nose. Almond-shaped eyes that slant up. A short neck.
408967
Male calicoes can happen when a male cat has two X chromosomes (Klinefelter syndrome, with XXY sex chromosomes and generally sterile), is a chimera with two different cell types, or rarely when some skin cells of the developing kitten spontaneously mutate. Calico cats can also be lighter in color—dilute calicos.
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Klinefelter syndrome is not inherited; the addition of an extra X chromosome occurs during the formation of reproductive cells (eggs or sperm) in one of an affected person's parents.
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['Infertility.', 'White milk leaking from nipples.', 'Absent, infrequent, or irregular periods.', 'Loss of libido.', 'Painful or uncomfortable intercourse.', 'Vaginal dryness.', 'Acne.', 'Excessive body and facial hair growth (hirsutism)']
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Klinefelter syndrome is one of the most common chromosome conditions in newborns. It affects between 1 in 500 and 1 in 1,000 newborn males. Variants of the disease with three, four, or more extra X chromosomes are less common. These variants affect 1 in 50,000 or fewer newborns.
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['Cessation of estrus cycle.', 'Copulatory plug after mating.', 'Behavioral changes.', 'Tracking weight gain.', 'Hair loss around nipples.', 'Nest building.', 'Enlarged lower abdomen.']
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These cats present as male, but can be Calico because they have two X chromosomes. This XXY configuration can cause Klinefelter's Syndrome, which is a health issue we'll get into later. These cats are also sterile and can't be used to breed other Calico cats.
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['Iris coloboma.', 'Anal atresia (opening to the anus is missing)', 'Skin tags or pits in front of the ears.', 'Unusually shaped ears.', 'Conductive hearing loss.', 'Hypertelorism (widely spaced eyes)']