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प्रश्न
Mention any one symptom of Turner's syndrome.
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उत्तर
The symptoms of Turner syndrome are Short stature, gonadal dysgenesis, and sexual infantilism.
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संबंधित प्रश्न
Given below is the representation of amino acid composition not the relevant translated portion of β-chain of haemoglobin, related to the shape of human red blood cells
(a) Is this representation indicating a normal human or a sufferer from certain related genetic disease? Give reason in support of your answer.
(b) What difference would be noticed in the phenotype of the normal and the sufferer related to this gene?
(c) Who are likely to suffer more from the defect related to the gene represented the males, the females or both males and females equally? And why?
Give an example of a human disorder that is caused due to a single gene mutation.
Why is pedigree analysis done in the study of human genetics? State the conclusions that can be drawn from it.
Attempt any TWO of the following:
‘The gene for sickle cell anaemia in homozygous condition is lethal and produces sickle cell trait in heterozygous carrier’. Explain.
Which of the following traits is never observed in a human female?
In human beings 45 chromosomes/single X/XO abnormality causes ______.
Identify the genetic disorder m which an individual has an overall masculine development, gynaecomastia and is sterile.
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.
Select the incorrect statement regarding pedigree analysis.
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 |
