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प्रश्न
What are chromosomal disorders?
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उत्तर
Chromosomal disorders are a type of genetic disorder where the abnormality is in the chromosomes themselves, either due to an incorrect number of chromosomes or a structural abnormality in one or more chromosomes. This can lead to various developmental and health issues.
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संबंधित प्रश्न
Why is pedigree analysis done in the study of human genetics? State the conclusions that can be drawn from it.
What do sex linked traits appear in males than in females?
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 |
Write a note on Down’s syndrome.
Mention the symptoms of Phenylketonuria.
Following list indicates various genetic diseases. Identify the diseases that are not caused due to single gene defect.
Huntington's chorea, alkaptonuria, Sickle cell anaemia, Down syndrome, thalassemia, Taysachs disease, Turner syndrome, cystic fibrosis, haemophi Lia, Klinefelter syndrome, albinism
Select the disease which is caused by recessive autosomal genes when present in homozygous conditions.
Read the following and answer from given below:
Turner's syndrome is an example of monosomy. It is formed by the union of an allosome-free egg and a normal 'X' containing sperm or a normal egg and an allosome-free sperm. The individual has 2n = 45 chromosomes (44 + X0) instead of 46. Such individuals are sterile females who have rudimentary ovaries, underdeveloped breasts, small uterus, short stature, webbed neck, and abnormal intelligence. They may not menstruate or ovulate. This disorder can be treated by giving female sex hormones to women from the age of puberty to make them develop breasts and have menstruation. This makes them feel more normal.
The number of Barr bodies present in a female with Turner's syndrome is ______
If a father and son are both defective in red-green colour vision, is it likely that the son inherited the trait from his father? Comment.
What is the genotype of Turner's Syndrome?
