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प्रश्न
Give reasons for the development of Turner’s syndrome and also mention its symptoms.
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उत्तर
Turner Syndrome (X monosomy/XO females):
- It is a sex chromosomal disorder caused due to non-disjunction of chromosomes during gamete formation.
- Individual born with Turner syndrome has 44 autosomes with XO.
- They are phenotypically female. They have short stature (height) and webbed neck, lower posterior hair line, broad shield-shaped chest, poorly developed ovaries and breast, and low intelligence.
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संबंधित प्रश्न
Give any 'two' names of X-linked diseases
Give a detail account of thalassemia.
Read the following statements and select the correct option.
i. Genetic disorders are broadly categorised as, Mendelian disorders and chromosomal disorders.
ii. Mendelian disorders are caused due to absence or excess of one or more chromosomes or their abnormal arrangement.
iii. Chromosomal disorders are mainly caused due to alteration or mutation in the gene.
Identify the option that correctly represents the number of chromosomes in Down syndrome.
Conditions of a karyotype 2n ± 1 and 2n ± 2 are called ______.
If both parents are carriers for thalassaemia, which is an autosomal recessive disorder, what are the chances of pregnancy resulting in an affected child?
“Genes contain the information that is required to express a particular trait.” Explain.
Short stature in females, webbed neck absence of menstrual cycle and sterility are characteristics which of the following disease?
How many pairs of autosomes are present in the human karyotype?
Which disorder affects haemoglobin production?
