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प्रश्न
What are the different characters that develop due to Klinefelter's syndrome?
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उत्तर
Klinefelter syndrome (XXY males):
- It is a chromosomal disorder caused due to an extra X chromosome in males. Thus genotype of individuals is 44 + XXY. They are described as feminized males.
- The extra chromosome is a result of the non-disjunction of the X-chromosome during meiosis.
- The individual is male and has overall masculine development.
- Individuals have harsh voice pitch and under developed testis.
- They are tall with long arms, feminine development (development of breast i.e. Gynaecomastia), and spermatogenesis does not occur, therefore, individuals are sterile.
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संबंधित प्रश्न
State any two symptoms of Down’s syndrome.
Answer the following question.
Both Haemophilia and Thalessemia are blood-related disorders in humans. Write their causes and the difference between the two. Name the category of genetic disorder they both come under.
Write a note on Down’s syndrome.
Choose the correct option which appropriately classifies the following disorders into Mendelian and chromosomal disorders:
Colour blindness, Down syndrome, Sickle cell anaemia, Turner syndrome, Thalassemia, Haemophilia, Phenylketonuria, Klinefelter syndrome.
HbA and HbS alleles of normal and sickle celled RBC are ______.
A woman with albinic father marries an albinic man. The proportion of her progeny is ______.
Genes for cytoplasmic male sterility in plants are generally located in ______.
If both parents are carriers for thalassaemia, which is an autosomal recessive disorder, what are the chances of pregnancy resulting in an affected child?
Rajesh and Mahesh have defective haemoglobin due to genetic disorders. Rajesh has too few globin molecules while Mahesh has incorrectly functioning globin molecules. Identify the disorder they are suffering from.
| Rajesh | Mahesh | |
| A. | Sickle cell anaemia - an autosome linked recessive trait | Thalassemia - an autosome linked dominant trait |
| B. | Thalassemia - an autosome linked recessive blood disorder | Sickle cell anaemia - an autosome linked recessive trait |
| C. | Sickle cell anemia - an autosome linked recessive trait | Thalassemia - an autosome linked recessive blood disorder |
| D. | Thalassemia - an autosome linked recessive blood disorder | Sickle cell anaemia - an autosome linked dominant trait |
Short stature in females, webbed neck absence of menstrual cycle and sterility are characteristics which of the following disease?
