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प्रश्न
Give any 'two' names of X-linked diseases
उत्तर
Colour blindness and haemophilia are examples of X-linked diseases.
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संबंधित प्रश्न
What is ‘syndrome’?
Mention the symptoms of Phenylketonuria.
A short stature with webbing of neck and low posterior hairline indicates ______ syndrome.
A woman with albinic father marries an albinic man. The proportion of her progeny is ______.
Sickle cell anaemia is ______.
Mental retardation in man associated with sex chromosomal abnormality is usually due to ______.
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 |
Placed below is a karyotype of a human being.
On the basis of this karyotype, which of the following conclusions can be drawn: ______
It is said, that the harmful alleles get eliminated from population over a period of time, yet sickle cell anaemia is persisting in human population. Why?
