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प्रश्न
Give the importance of heterocyst in cyanobateria.
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उत्तर
In cyanobacteria, heterocyst is specialized and colourless cells and are the site for nitrogen fixation.
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संबंधित प्रश्न
If only one 'X' chromosome is found in a female person, which of the following symptoms she will show?
- epicanthal skin fold
- webbing of neck
- small testis and absence of spermatogenesis
- presence of simian crease on the palm
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.
Mention the symptoms of Phenylketonuria.
Identify the INCORRECT statement.
Match the Column-I with Column-II and choose the CORRECT answer
| Column-I | Column-II | ||
| P. | Klinefelter syndrome | i. | Mutation in autosomal gene |
| Q. | Thalassaemia | ii. | Mutation sex chromosome linked gene |
| R. | Down syndrome | iii. | Trisomy of autosome |
| S. | Colour blindness | iv. | Trisomy of sex chromosome |
If a genetic disease is transferred from a phenotypically normal but carrier female to only some of the male progeny, the disease is ______.
A woman with albinic father marries an albinic man. The proportion of her progeny is ______.
Extra chromosome ‘X’ is present in which one of the following cases?
What is the genotype of Turner's Syndrome?
