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प्रश्न
In human beings 45 chromosomes/single X/XO abnormality causes ______.
विकल्प
Down's syndrome
Klinfelter's syndrome
Turner's syndrome
Edward's syndrome
उत्तर
In human beings 45 chromosomes/single X/XO abnormality causes Turner's syndrome.
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 do sex linked traits appear in males than in females?
Give an account of one Mendelian and one chromosomal disorder you have studied.
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.
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 |
Genes for cytoplasmic male sterility in plants are generally located in ______.
Select the incorrect statement regarding pedigree analysis.
Select the disease which is caused by recessive autosomal genes when present in homozygous conditions.
Trisomy is represented by ______.
This abnormality occurs due to monosomy (2n - 1); the individual has 2n = 45 chromosomes with 44 + XO genotype.
