Advertisements
Advertisements
प्रश्न
How was it concluded that genes are located on chromosomes?
Advertisements
उत्तर
Walter Sutton and Theodor Boveri studied the behaviour of chromosomes and genes during meiosis. They observed that the movement of the chromosome and that of the gene was similar. Based on this observation, thy proposed that genes are located on chromosomes.
APPEARS IN
संबंधित प्रश्न
Klinefelters’ syndrome is characterized by a karyotype of ____________.
Define aneuploidy. How is it different from polyploidy? Describe the individuals having following chromosomal abnormalities.
- Trisomy of 21st Chromosome
- XXY
- XO
Match List I with List II.
| List I | List II | ||
| A. | Down’s syndrome | I. | 11th chromosome |
| B. | α-Thalassemia | II. | ‘X’ chromosome |
| C. | β-Thalassemia | III. | 21st chromosome |
| D. | Klinefelter’s syndrome | IV. | 16th chromosome |
Choose the correct answer from the options given below:
Which clinical feature is present in approximately 50% of Down's Syndrome cases?
Which of the following is a characteristic feature of Turner's Syndrome?
What is the formula for trisomy?
Which of the following sex chromosome aneuploidies results in phenotypically normal females who are taller than average?
What is the primary characteristic of polyploidy?
Which crop is an example of a hexaploid organism with a 6n = 42 chromosome number?
Which structural chromosomal abnormality involves a chromosomal segment being copied and repeated?
What is the term used to describe the loss of one or more chromosomes due to nondisjunction?
In which parent does nondisjunction most commonly occur to cause Down's Syndrome?
What condition is characterized by the presence of the Philadelphia chromosome?
Which of the following conditions is described as having rudimentary or streak ovaries?
Which trisomy is associated with kidney and lung defects in addition to cardiac abnormalities?
