Down Syndrome
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Down Syndrome is a genetic chromosomal condition that affects people of all races and economic levels. It can be diagnosed prenatally through screening tests or after birth based on physical traits and a karyotype test. The preferred language is people first, such as referring to someone as "a child with Down Syndrome" rather than "a Down Syndrome child", and saying they "have" Down Syndrome rather than that they "suffer" from it.
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For one of my classes, we had to do a presentation, my selection was on Down Syndrome.
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A Powerpoint presentation for my science class about the Chromosomal disease Down Syndrome.
Genetic & ;Development Disorders Down's syndrome.
Down syndrome (DS or DNS), also known as trisomy 21, is a genetic disorder caused by the presence of all or part of a third copy of chromosome 21. It is typically associated with physical growth delays, characteristic facial features and mild to moderate intellectual disability. The average IQ of a young adult with Down syndrome is 50, equivalent to the mental ability of an 8- or 9-year-old child, but this can vary widely.
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When we talk about genetic disease, the first thing that come in our mind is "Down Syndrome".
Down syndrome: is a genetic disease that comes from a meiotic
nondisjunction in the DNA of the divided cell, so cause a three
chromosomes in the Number (21).
Down syndrome is continuous with the life of person, and the patient
needs a special care from his society, family, and even his country.
In this report, I will discuss everything about "Down Syndrome",
causes, symptoms, diagnosis and even treatment. I will also mention some samples of people with Down syndrome who did interesting things in our world.
The maternal age is one of the most common cause of Down
Syndrome, sometimes the radiation causes this syndrome or increase its risk.
No treatment is known for Down Syndrome, but they can be rehabilitated for life. Finally, I hope you enjoy and take benefit from this report, and know everything about this common disease which is very difficult to get along with normal people
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Down Syndrome
A Powerpoint presentation for my science class about the Chromosomal disease Down Syndrome.
Genetic & ;Development Disorders Down's syndrome.
Down syndrome (DS or DNS), also known as trisomy 21, is a genetic disorder caused by the presence of all or part of a third copy of chromosome 21. It is typically associated with physical growth delays, characteristic facial features and mild to moderate intellectual disability. The average IQ of a young adult with Down syndrome is 50, equivalent to the mental ability of an 8- or 9-year-old child, but this can vary widely.
Down syndrome
Pediatrics. trisomy 21. Meiotic non-disjunction of chromosome 21. clinical features and associated abnormalities of down syndrome. screening test for down syndrome. counseling for parents in down syndrome.
Down syndrome awareness
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When we talk about genetic disease, the first thing that come in our mind is "Down Syndrome".
Down syndrome: is a genetic disease that comes from a meiotic
nondisjunction in the DNA of the divided cell, so cause a three
chromosomes in the Number (21).
Down syndrome is continuous with the life of person, and the patient
needs a special care from his society, family, and even his country.
In this report, I will discuss everything about "Down Syndrome",
causes, symptoms, diagnosis and even treatment. I will also mention some samples of people with Down syndrome who did interesting things in our world.
The maternal age is one of the most common cause of Down
Syndrome, sometimes the radiation causes this syndrome or increase its risk.
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Describe the structure and function of taste buds.
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Differentiation between pleasant and harmful food
Influence on behavior
Selection of food based on metabolic needs
Receptors of Taste:
Taste buds on the tongue
Influence of sense of smell, texture of food, and pain stimulation (e.g., by pepper)
Primary and Secondary Taste Sensations:
Primary taste sensations: Sweet, Sour, Salty, Bitter, Umami
Chemical basis and signal transduction mechanisms for each taste
Taste Threshold and Index:
Taste threshold values for Sweet (sucrose), Salty (NaCl), Sour (HCl), and Bitter (Quinine)
Taste index relationship: Inversely proportional to taste threshold
Taste Blindness:
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Taste Sensitivity and Adaptation:
Decrease in sensitivity with age
Rapid adaptation of taste sensation
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Dissolution of tastants to reach receptors
Washing away the stimulus
Taste Preferences and Aversions:
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Conditions: Ageusia, Hypogeusia, Dysgeusia (parageusia)
Causes: Nerve damage, neurological disorders, infections, poor oral hygiene, adverse drug effects, deficiencies, aging, tobacco use, altered neurotransmitter levels
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Supertasters:
25% of the population with heightened sensitivity to taste, especially bitterness
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