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प्रश्न
Match the column-I with column-II and re-write the matching pairs.
| Column-I | Column-II |
| 1. 21 trisomy | a. Turner’s syndrome |
| 2. X-monosomy | b. Klinefelter’s syndrome |
| 3. Holandric traits | c. Down's syndrome |
| 4. Feminized male | d. Hypertrichosis |
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उत्तर
| Column-I | Column-II |
| 1. 21 trisomy | c. Down's syndrome |
| 2. X-monosomy | a. Turner’s syndrome |
| 3. Holandric traits | d. Hypertrichosis |
| 4. Feminized male | b. Klinefelter’s syndrome |
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संबंधित प्रश्न
A couple with normal vision bear a colour blind child. Work out a cross to show how it is possible and mention the sex of the affected child.
Name the disorder caused by under secretion of thyroxine in children
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.
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.
Give an account of one Mendelian and one chromosomal disorder you have studied.
HbA and HbS alleles of normal and sickle celled RBC are ______.
Conditions of a karyotype 2n ± 1 and 2n ± 2 are called ______.
If a colour-blind man marries a woman who is homozygous for normal colour vision, the probability of their son being colour-blind is ______.
The person with Turner’s syndrome has ______.
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 |
