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Question
What are chromosomal disorders?
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Solution
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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RELATED QUESTIONS
Identify ‘a’, ‘b’, ‘c’, ‘d’, ‘e’ and ‘f’ in the table given below:
| S. No. | Syndrome | Cause | Characteristics of affected individuals | Sex (male/female/both) |
| 1. | Down’s | Trisomy of 21 |
‘a’ |
‘b’ |
| 2. | ‘c’ | XXY | Overall masculine development | ‘d’ |
| 3. | Turner’s | 45 with XO |
‘e’ |
‘f’ |
What is ‘syndrome’?
What are the different characters that develop due to Klinefelter's syndrome?
Give reasons for the development of Turner’s syndrome and also mention its symptoms.
It is well known that Queen Victoria of England was a carrier for haemophilia. Since this is an X-linked disease, it can be predicted that ______.
Down’s syndrome is due to ______.
This abnormality occurs due to monosomy (2n - 1); the individual has 2n = 45 chromosomes with 44 + XO genotype.
Females with Turner’s syndrome have ______.
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.
Turner's syndrome is an example of ______
Which of the folowing is a correct match?
