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प्रश्न
A male gorilla has 48 chromosomes in each of its body cells. How many chromosomes will each of the sperms have?
विकल्प
24
48
17
16
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उत्तर
24
Explanation:
In gametes, chromosomes split in half. 48 chromosomes will thus be halved and just 24 will be found in a gorilla sperm cell.
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संबंधित प्रश्न
What is the difference between chromatin fibre and chromosome?
Match the events given in column A with the phase in mitotic cell division in column B.
| Column ‘A’ | Column ‘B’ | ||
| 1. | Chromosomes get arranged in a horizontal plane at the equator. |
a. | Anaphase |
| 2. | Daughter chromosomes move to the opposite poles of a spindle |
b. | Prophase |
| 3. | Chromosomes become visible as fine, long threads. |
c. | Telophase |
| 4. | Chromosomes lose their distinctiveness and gradually become transformed into a chromatin network. |
d. | Metaphase |
“First meiotic division is the reduction division” what does the word ‘reduction’ refer to in this statement?
Choose the correct answer:
Centromere is related to ________
Choose the correct answer:
Chromosomes number is halved in _____________
Choose the correct answer:
Minimum coiling in chromosome is at ________________
Mention the contribution of the scientist given below in the study of chromosome:
Balbiani
Mention the contribution of the scientist given below in the study of chromosome:
Sutton and Boveri
State how does meiosis maintains chromosome number in a species.
(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 Leptotene
Complete the following sentence with appropriate word :
The pairing of homologous chromosomes is called _______.
Multiple Choice Question:
The disappearance of spindle and uncoiling of chromosomes takes place in
Name the following:
The diploid number for cell of man.
Identify the odd one:-
Give the example of X- monosomy you have studied.
The female gamete/egg cell of a human cell will have ______.
Define the following term:
Chromatid
