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प्रश्न
Differentiate between
Chromatin and Chromosome.
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उत्तर
| Chromatin | Chromosome | |
| (i) | Uncondensed form of nucleoprotein. | Condensed form of nucleoprotein. |
| (ii) | Seen in interphase stage of cell division. | Seen in M-phase. |
| (iii) | Control of metabolic activities. | Vehicles of heredity. |
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संबंधित प्रश्न
Correct the following statement if there is any mistake:
If there are 46 chromosomes in a cell, there will be 23 chromatin fibres inside the nucleus during interphase.
Humans have 46 chromosomes. Their sperms and eggs will have ______ chromosomes each.
Fill in the blank
The _______ (s) are surrounded by radiating rays called aster
“First meiotic division is the reduction division” what does the word ‘reduction’ refer to in this statement?
Expand the following biological abbreviations :
DNA
Chromosomes are mainly made up of ______.
Choose the correct answer:
Chromosomes number is halved in _____________
Choose the correct answer:
During mitosis which of the following disintegrate ___________
Mention the contribution of the scientist given below in the study of chromosome:
Balbiani
Choose the correct answer:
Chromosomes largely consist of _______________
(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 Chromosomes
Mention, if the following statement is True or False. If false rewrite the wrong statement in its correct form:
Chromosomes other than sex-chromosomes are autonomous.
Mention, if the following statement is True or False. If false rewrite the wrong statement in its correct form:
Chromosomes are the thickest and shortest in telophase.
Give Technical Term:
Transmission of characters through generations.
With the help of a neat labelled diagram, describe the structure of chromosome.
In humans, the sex chromosome complement is
The centromere is found at the centre of the ______ chromosome.
After a mitotic cell division, a human female cell will have ______.
Distinguish between the following pair:
Karyotype and Karyokinesis
