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प्रश्न
Match the following.
| 1. Autosomes | - | Trisomy 21 |
| 2. Diploid condition | - | 9 : 3 : 3 : 1 |
| 3. Allosome | - | 22 pair of chromosome |
| 4. Down’s syndrome | - | 2n |
| 5. Dihybrid ratio | - | 23rd pair of chromosome |
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उत्तर
| 1. Autosomes | - | 22 pair of chromosome |
| 2. Diploid condition | - | 2n |
| 3. Allosome | - | 23rd pair of chromosome |
| 4. Down’s syndrome | - | Trisomy 21 |
| 5. Dihybrid ratio | - | 9 : 3 : 3 : 1 |
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संबंधित प्रश्न
Choose the correct answer:
Centromere is related to _______________
Give Reasons for the following
The meiosis is called reductional division
(i) Draw a neat labeled diagram to show the metaphase stage of mitosis in an animal cell having ‘6’ chromosome.
(ii) How many daughter cells are formed at the end of mitosis and at the end of meiosis?
(iii) With reference to cell division explain the following terms:
(Chromatid, Centromere, Haploid).
(iv) Name the type of cell division that occurs during:
1. Growth of shoot 2. Formation of pollen grains.
3. Repair of worn out tissues.
Explain the Term Spindle
Give Technical Terms
The stage at which the formation of chiasmata occurs.
Multiple Choice Question:
The period between two successive mitotic divisions is
Name the following:
Pair of genes responsible for a particular characteristic.
Complete the following sentence with appropriate word:
The chromosomal theory of inheritance was proposed by ____________in 1902.
In humans, the sex chromosome complement is
The number of chromosomes found in human beings is ______.
