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प्रश्न
Give reasons for the development of Turner’s syndrome and also mention its symptoms.
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उत्तर
Turner Syndrome (X monosomy/XO females):
- It is a sex chromosomal disorder caused due to non-disjunction of chromosomes during gamete formation.
- Individual born with Turner syndrome has 44 autosomes with XO.
- They are phenotypically female. They have short stature (height) and webbed neck, lower posterior hair line, broad shield-shaped chest, poorly developed ovaries and breast, and low intelligence.
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संबंधित प्रश्न
Give an example of an autosomal recessive trait in humans. Explain its pattern of inheritance with the help of a cross.
Name a disorder a human suffers from as a result of the monosomy of the sex chromosome. Give the karyotype and write the symptoms.
Mention the symptoms of Phenylketonuria.
Match the Column I and Column II and select the correct option.
| List-I | List-II | ||
| i. | Holandric genes | a. | Pleiotropy |
| ii. | Multiple effects of a single gene | b. | Hypertrichosis |
| iii. | Skin colour in man | c. | Multiple Alleles |
| iv. | ABO Blood types | d. | Polygenic inheritance |
The correct answer is
Identify the option that correctly represents the number of chromosomes in Down syndrome.
Where are the genes for cytoplasmic male sterility in plants located?
Mention any one symptom of Turner's syndrome.
Which of the following is the primary cause of Mendelian disorders?
At what level does the defect occur in Mendelian disorders?
Which of the following is NOT an example of a chromosomal disorder?
