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प्रश्न
Differentiate between X-chromosome and Y-chromosome with reference to –
- length of non-homologous regions
- type as per the position of the centromere
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उत्तर
| X-chromosome | Y-chromosome | |
| 1. | Its non-homologous region is longer as compared to the Y-chromosome. | Its non-homologous region is shorter as compared to the X-chromosome. |
| 2. | It is metacentric. | It is acrocentric. |
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संबंधित प्रश्न
Name the sex chromosomes in human males and females
Give an appropriate biological or technical term for the following:
The condition in which a pair of chromosomes carry similar alleles of a particular character.
The Chromatin material is formed forms of ______.
State the difference between:
Chromosome and chromatid
Choose the correct answer:
Minimum coiling in chromosome is at ______________
Choose the correct answer:
Chromosomes are thin and thread like at __________
What is the importance of meiosis?
(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 Zygotene
The loss of one or more chromosomes in ploidy is called ______.
